As filed with the Securities and Exchange Commission on March 10, 2011

Registration No. 333-165467

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Amendment
No. 10 to

Form S-1

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

MAGNACHIP
SEMICONDUCTOR CORPORATION

(Successor to MagnaChip Semiconductor LLC)

(Exact name of Registrant as specified in its charter)

Delaware

3674

83-0406195

(State or other jurisdiction of incorporation or organization)

(Primary Standard Industrial Classification Code Number)

(I.R.S. Employer Identification No.)

c/o MagnaChip Semiconductor S.A.

74, rue de Merl, B.P. 709 L-2146 Luxembourg R.C.S.

Luxembourg B97483

(352) 45-62-62

(Address, including zip code, and telephone number, including area code, of Registrants principal executive offices)

John McFarland

Senior Vice
President, General Counsel and Secretary

c/o MagnaChip Semiconductor, Inc.

20400 Stevens Creek Boulevard, Suite 370

Cupertino, CA 95014

Telephone: (408) 625-5999

Fax: (408) 625-5990

(Name, address, including zip code, and telephone number, including area code, of agent for service)

Copies to:

Micheal J. Reagan

Khoa D. Do

W. Stuart Ogg

Jones Day

1755 Embarcadero
Road

Palo Alto, California 94303

Telephone: (650) 739-3939

Fax: (650) 739-3900

Kirk A. Davenport

Keith Benson

Latham & Watkins LLP

885 Third Avenue

New York,
NY 10022-4834

Telephone: (212) 906-1200

Fax: (212) 751-4864

Approximate date of commencement of proposed sale to
the public: As soon as practicable after this registration statement becomes effective.

If any of the securities being
registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, check the following box: ¨

If this Form is filed to register
additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same
offering: ¨

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective
registration statement for the same offering: ¨

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the
Securities Act registration statement number of the earlier effective registration statement for the same offering. ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated
filer, a non-accelerated filer, or a smaller reporting company. See the definitions of large accelerated filer, accelerated filer and smaller reporting company in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer ¨

Accelerated filer
¨

Non-accelerated filer þ

Smaller reporting company ¨

(Do not check if a smaller reporting company)

The Registrant hereby amends this Registration Statement on such date or dates as may be necessary to delay its effective date until the
Registrant shall file a further amendment which specifically states that this Registration Statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933 or until the Registration Statement shall
become effective on such date as the Commission, acting pursuant to said Section 8(a), may determine.

The information in this preliminary prospectus is not complete and may be changed. These securities
may not be sold until the registration statement filed with the Securities and Exchange Commission is effective. This preliminary prospectus is not an offer to sell nor does it seek an offer to buy these securities in any jurisdiction where the
offer or sale is not permitted.

Subject to Completion. Dated March 10, 2011

MagnaChip Semiconductor Corporation

9,500,000 Depositary Shares

Representing 9,500,000 Shares of Common Stock

This is the initial public offering of common stock of MagnaChip Semiconductor Corporation. MagnaChip Semiconductor Corporation is offering 950,000
shares of common stock. The selling stockholders identified in this prospectus are offering 8,550,000 shares of common stock. We will not receive any of the proceeds from the sale of the shares by the selling stockholders.

All of the shares of common stock sold in this offering will be sold in the form of depositary shares. Each depositary share represents an ownership
interest in one share of common stock. On , 2011 (45 days after the date of this prospectus), each holder of depositary
shares will be credited with a number of shares of common stock equal to the number of depositary shares held by such holder on that date, and the depositary shares will be canceled. Until the cancellation of the depositary shares
on , 2011, holders of depositary shares will be entitled to all proportional rights and preferences of the shares of common
stock.

Prior to this offering, there has been no public market for our depositary shares or our common stock. We currently estimate that
the initial public offering price per depositary share will be between $15.00 and $17.00. The depositary shares and the common stock have been approved for listing on the New York Stock Exchange under the symbol MX with the listing being
only for the depositary shares upon the completion of this offering and only for the common stock following the cancellation of the depositary shares.

See Risk Factors beginning on page 14 to read about factors you should consider before buying the depositary shares and shares of the common stock.

Neither the Securities and Exchange Commission nor any other regulatory body has approved or disapproved of these securities or passed upon the
accuracy or adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Perdepositary share

Total

Initial public offering price

$

$

Underwriting discounts and commissions

$

$

Proceeds, before expenses to MagnaChip Semiconductor Corporation

$

$

Proceeds, before expenses to Selling Stockholders

$

$

To the extent that the underwriters sell
more than 9,500,000 depositary shares, the underwriters have the option to purchase up to an additional 142,500 depositary shares from us and up to an additional 1,282,500 depositary shares from the selling stockholders at the initial public
offering price less the underwriting discount.

The underwriters expect to deliver the depositary shares against payment in New York, New
York on , 2011.

No dealer, salesperson or
other person has been authorized to give any information or to represent anything not contained in this prospectus. You must not rely on any unauthorized information or representations. This prospectus is an offer to sell only the shares offered by
this prospectus, but only under circumstances and in jurisdictions where it is lawful to do so. The information contained in this prospectus is current only as of its date.

MagnaChip is a registered trademark of us and our subsidiaries and MagnaChip Everywhere is our registered service mark. An application for United States trademark registration of
MagnaChip Everywhere is pending. All other product, service and company names mentioned in this prospectus are the service marks or trademarks of their respective owners.

This summary highlights information contained elsewhere in this prospectus. This summary does not contain all of the information that you should
consider before deciding to invest in our common stock. You should read this entire prospectus carefully, including the Risk Factors and Managements Discussion and Analysis of Financial Condition and Results of
Operations sections contained in this prospectus and our consolidated financial statements before making an investment decision. On March 10, 2011, we converted from a Delaware limited liability company to a Delaware corporation and changed
our name from MagnaChip Semiconductor LLC to MagnaChip Semiconductor Corporation. In this prospectus, we refer to such transactions as the corporate conversion. In this prospectus, unless the context otherwise requires, the terms we,
us, our and MagnaChip refer to MagnaChip Semiconductor LLC and its consolidated subsidiaries for the periods prior to the consummation of the corporate conversion, and such terms refer to MagnaChip Semiconductor
Corporation and its consolidated subsidiaries for the periods after the consummation of the corporate conversion. The term Korea refers to the Republic of Korea or South Korea. All references to shares of common stock being sold in this
offering include shares held in the form of depositary shares, as described under Description of Depositary Shares.

Overview

MagnaChip is a Korea-based designer and manufacturer of analog and mixed-signal semiconductor products for high-volume consumer
applications. We believe we have one of the broadest and deepest analog and mixed-signal semiconductor technology platforms in the industry, supported by our 30-year operating history, large portfolio of approximately 2,730 novel registered patents
and 760 pending novel patent applications, and extensive engineering and manufacturing process expertise. Our business is comprised of three key segments: Display Solutions, Power Solutions and Semiconductor Manufacturing Services. Our Display
Solutions products include display drivers that cover a wide range of flat panel displays and mobile multimedia devices. Our Power Solutions products include discrete and integrated circuit solutions for power management in high-volume consumer
applications. Our Semiconductor Manufacturing Services segment provides specialty analog and mixed-signal foundry services for fabless semiconductor companies that serve the consumer, computing and wireless end markets.

Our wide variety of analog and mixed-signal semiconductor products and manufacturing services combined with our deep technology platform allows us
to address multiple high-growth end markets and to rapidly develop and introduce new products and services in response to market demands. Our substantial manufacturing operations in Korea and design centers in Korea and Japan place us at the core of
the global consumer electronics supply chain. We believe this enables us to quickly and efficiently respond to our customers needs and allows us to better service and capture additional demand from existing and new customers.

We have a long history of supplying and collaborating on product and technology development with leading innovators in the consumer electronics
market. As a result, we have been able to strengthen our technology platform and develop products and services that are in high demand by our customers and end consumers. We sold over 2,400 and 2,300 distinct products to over 500 and 185 customers
for the year ended December 31, 2010 and combined twelve-month period ended December 31, 2009, respectively, with a substantial portion of our revenues derived from a concentrated number of customers. The increase in number of customers is due
to the continuing growth of our Power Solutions business. Our largest semiconductor manufacturing services customers include some of the fastest growing and leading semiconductor companies that design analog and mixed-signal products for the
consumer, computing and wireless end markets.

Our business is largely driven by innovation in the consumer electronics markets and the growing
adoption by consumers worldwide of electronic devices for use in their daily lives. The consumer electronics market is large and growing rapidly, largely due to consumers increasingly accessing a wide variety of available rich media content, such as
high definition audio and video, mobile television and games on advanced consumer electronic devices. According to Gartner, production of liquid crystal display, or LCD televisions, smartphones, mobile personal computers, or PCs, and media tablets
is expected to grow from 2010 to 2013 by a compound annual growth rate of 8%, 39%, 25%, and 99%, respectively. Electronics manufacturers are continuously implementing advanced technologies in new generations of electronic devices using analog and
mixed-signal semiconductor components, such as display drivers that enable display of high resolution images, encoding and decoding devices that allow playback of high definition audio and video, and power management semiconductors that increase
power efficiency, thereby reducing heat dissipation and extending battery life. According to iSuppli Corporation, in 2009, the display driver semiconductor market was $6.2 billion and the power management semiconductor market was
$22.4 billion.

For the year ended December 31, 2010, we generated net sales of $770.4 million, income from continuing
operations of $74.1 million, Adjusted EBITDA of $157.9 million and Adjusted Net Income of $89.2 million. See Prospectus SummarySummary Historical and Unaudited Pro Forma Consolidated Financial Data, beginning on page
8 for an explanation of our use of Adjusted EBITDA and Adjusted Net Income.

Our Products and Services

Our Display Solutions products include source and gate drivers and timing controllers that cover a wide range of flat panel displays used in LCD,
light emitting diode, or LED, and 3D televisions and displays, mobile PCs and mobile communications and entertainment devices. Our display solutions support the industrys most advanced display technologies, such as low temperature polysilicon,
or LTPS, and active matrix organic light emitting diode, or AMOLED, as well as high-volume display technologies such as thin film transistor, or TFT. Our Display Solutions business represented 39.7%, 50.5% and 50.5% of our net sales for the fiscal
years ended December 31, 2010, 2009 (on a combined basis) and 2008, respectively.

We expanded our business and market opportunity
by establishing our Power Solutions business in late 2007. We have introduced a number of products for power management applications, including metal oxide semiconductor field effect transistors, or MOSFETs, analog switches, LED drivers, DC-DC
converters and linear regulators for a range of devices, including LCD and LED digital televisions, mobile phones, computers and other consumer electronics products. Our Power Solutions business represented 7.4%, 2.2% and 0.9% of our net sales for
the fiscal years ended December 31, 2010, 2009 (on a combined basis) and 2008, respectively.

We offer semiconductor manufacturing
services to fabless analog and mixed-signal semiconductor companies that require differentiated, specialty analog and mixed-signal process technologies. We believe the majority of our top twenty semiconductor manufacturing services customers use us
as their primary manufacturing source for the products that we manufacture for them. Our process technologies are optimized for analog and mixed-signal devices and include standard complementary metal-oxide semiconductor, or CMOS, high voltage CMOS,
ultra-low leakage high voltage CMOS and bipolar complementary double-diffused metal oxide semiconductor, or BCDMOS, and electronically erasable programmable read only memory, or EEPROM. Our semiconductor manufacturing services customers use us to
manufacture a wide range of products, including display drivers, LED drivers, audio encoding and decoding devices, microcontrollers,

electronic tags and power management semiconductors. Our Semiconductor Manufacturing Services business represented 52.6%, 46.7% and 47.7% of our net sales for the fiscal years ended
December 31, 2010, 2009 (on a combined basis) and 2008, respectively.

We manufacture all of our products at our three fabrication
facilities located in Korea. We have approximately 240 proprietary process flows we can utilize for our products and offer to our semiconductor manufacturing services customers. Our manufacturing base serves both our display driver and power
management businesses and semiconductor manufacturing services customers, allowing us to optimize our asset utilization and leverage our investments across our product and service offerings. Analog and mixed-signal manufacturing facilities and
processes are typically distinguished by design and process implementation expertise rather than the use of the most advanced equipment. These processes also tend to migrate more slowly to smaller geometries due to technological barriers and
increased costs. For example, some of our products use high-voltage technology that requires larger geometries and that may not migrate to smaller geometries for several years, if at all. As a result, our manufacturing base and strategy does not
require substantial investment in leading edge process equipment, allowing us to utilize our facilities and equipment over an extended period of time with moderate required capital investments.

Our Competitive Strengths

We believe our
strengths include:



Broad and advanced analog and mixed-signal semiconductor technology and intellectual property platform that allows us to develop new products and meet market
demands quickly;



Established relationships and close collaboration with leading global consumer electronics companies, which enhance our visibility into new product
opportunities, markets and technology trends;



Longstanding presence of our management, personnel and manufacturing base in Asia and proximity to our largest customers and to the core of the global consumer
electronics supply chain, which allows us to respond rapidly and efficiently to our customers needs;



Flexible, service-oriented culture and approach to customers;



Distinctive analog and mixed-signal process technology and manufacturing expertise; and



Manufacturing facilities with specialty processes and a low-cost operating structure, which allow us to maintain price competitiveness across our product and
service offerings.

Our Strategy

Our objective is to grow our business, our cash flow and profitability and to establish our position as a leading provider of analog and mixed-signal semiconductor products and services for high-volume markets. Our
business strategy emphasizes the following key elements:



Leverage our advanced analog and mixed-signal technology platform to continuously innovate and deliver products with high levels of performance and integration,
as well as to expand our technology offerings within our target markets, such as our power management products;



Increase business with our global customer base of leading consumer electronics original equipment manufacturers, or OEMs, and fabless companies by collaborating
on critical design, product and manufacturing process development and leveraging our deep knowledge of customer needs;

Drive execution excellence in new product development, manufacturing efficiency and quality, customer service and personnel development; and



Optimize asset utilization and return on capital investments by maintaining our focus on specialty process technologies that do not require substantial
investment in leading edge process equipment and by utilizing our manufacturing facilities for both our display driver and power management businesses and manufacturing services customers.

Risks Related to Our Company

Investing in
our company entails a high degree of risk, including those summarized below and those more fully described in the Risk Factors section beginning on page 14 of this prospectus. You should consider carefully these risks before
deciding to invest in our common stock.



We have a history of losses and may not be profitable in the future;



On June 12, 2009, we filed a voluntary petition for relief under Chapter 11 of the United States Bankruptcy Code and our plan of reorganization became
effective on November 9, 2009;



The cyclical nature of the semiconductor industry may limit our ability to maintain or increase net sales and profit levels during industry downturns;



If we fail to develop new products and process technologies or enhance our existing products and services in order to react to rapid technological change and
market demands, our business will suffer;



A significant portion of our sales comes from a relatively limited number of customers and the loss of any of such customers or a significant decrease in sales
to any of such customers would harm our revenue and gross profit;



The average selling prices of our semiconductor products have at times declined rapidly and will likely do so in the future, which could harm our revenue and
gross profit; and



Upon completion of this offering, our largest stockholder, consisting of affiliated funds of Avenue Capital Management II, L.P., will control approximately 52.1%
of our outstanding common stock, assuming no exercise by the underwriters of their option to purchase additional shares.

Corporate
Information

On March 10, 2011, MagnaChip Semiconductor LLC converted from a Delaware limited liability company to a Delaware
corporation. We refer to this as the corporate conversion. In connection with the corporate conversion, each common unit of MagnaChip Semiconductor LLC was converted into 0.125 shares of common stock of MagnaChip Semiconductor Corporation, the
members of MagnaChip Semiconductor LLC became stockholders of MagnaChip Semiconductor Corporation and MagnaChip Semiconductor Corporation succeeded to the business of MagnaChip Semiconductor LLC and its consolidated subsidiaries. See Corporate
Conversion for further information regarding the corporate conversion.

(352) 45-62-62. Our website address is www.magnachip.com. You should not consider the information contained on our website to be part of this prospectus or in deciding whether to
purchase shares of our common stock.

Our business was named MagnaChip Semiconductor when it was acquired from Hynix Semiconductor,
Inc., or Hynix, in October 2004. We refer to this acquisition as the Original Acquisition.

On June 12, 2009, MagnaChip
Semiconductor LLC, along with certain of its subsidiaries, including MagnaChip Semiconductor S.A., filed a voluntary petition for relief in the United States Bankruptcy Court for the District of Delaware under Chapter 11 of the United States
Bankruptcy Code, which we refer to as the reorganization proceedings. On November 9, 2009, our plan of reorganization became effective and we emerged from the reorganization proceedings with our management team remaining in place. Our
Chapter 11 plan of reorganization implemented a comprehensive financial reorganization that significantly reduced our outstanding indebtedness. Additionally, on that date, a new board of directors of MagnaChip Semiconductor LLC was appointed,
MagnaChip Semiconductor LLCs previously outstanding common and preferred units, and options were cancelled, MagnaChip Semiconductor LLC issued approximately 300 million common units (approximately 37.5 million shares of common stock
following the corporate conversion) and warrants to purchase 15 million common units (approximately 1.9 million shares of common stock following the corporate conversion) to two classes of creditors and affiliated funds of Avenue Capital
Management II, L.P. became the majority unitholder of MagnaChip Semiconductor LLC.

Avenue Capital Management II, L.P. is a global
investment management firm, and it and its affiliated funds specialize in investing in high yield debt, debt of insolvent or financially distressed companies and equity of companies undergoing financial or operational turnarounds or reorganizations.
In this prospectus, we refer to funds affiliated with Avenue Capital Management II, L.P. collectively as Avenue. Avenue generally does not manage or operate the companies in which it invests; however, in connection with some of its equity
investments, Avenue will appoint one or more representatives to serve on the board of directors. Avenue was a holder of a significant portion of our indebtedness which was outstanding prior to our reorganization proceedings. In connection with our
emergence from our reorganization proceedings, Avenue became our majority unitholder as a result of its participation in our rights offering and continued as a lender under our new term loan. In connection with our April 2010 senior notes offering,
Avenue purchased notes in the aggregate principal amount of $35.0 million, was repaid $42.8 million in connection with the repayment of our new term loan and received $91.2 million in connection with our distribution to unitholders.
Avenue will continue to be able to elect a majority of our board as long as Avenue continues to hold or control a majority of our outstanding shares. See Certain Relationships and Related Transactions for additional information.

Shares offered by us pursuant to the underwriters option to purchase additional shares

142,500 shares in the form of depositary shares(1)

Shares offered by the selling stockholders pursuant to the underwriters option to purchase additional shares

1,282,500 shares in the form of depositary shares(1)

Shares of common stock to be outstanding after this offering

39,351,985 shares

Use of proceeds

We intend to use the net proceeds received by us in connection with this offering, including any net proceeds received by us in connection with the underwriters option to purchase additional shares,
to make employee incentive payments. We will not receive any proceeds from the sale of shares of common stock offered by the selling stockholders, including upon the sale of shares if the underwriters exercise their option to purchase additional
shares from the selling stockholder in this offering.

Risk factors

See Risk Factors beginning on page 14 and the other information included in this prospectus for a discussion of the factors you should consider carefully before deciding to invest in
shares of our common stock.

Dividend policy

We do not anticipate paying any cash dividends on our common stock after this offering.

Depositary shares

All of the shares of common stock sold in this offering will be sold in the form of depositary shares. Each depositary share represents an ownership interest in one share of common stock.
On , 2011 (45 days after the date of this prospectus), each holder of depositary shares will be credited with a number
of shares of common stock equal to the number of depositary shares held by such holder on that date, and the depositary shares will be canceled. Until the cancellation of the depositary shares
on , 2011, holders of depositary shares will be entitled to all proportional rights and preferences of the shares of common
stock. This offering has been structured using depositary shares to enable our unitholders to obtain the preferred income tax treatment for the corporate

(1)

We have provided the underwriters an option to purchase up to 142,500 additional depositary shares and the selling stockholders have provided the underwriters an option to
purchase up to 1,282,500 additional depositary shares. If the underwriters exercise their option to purchase additional shares, we will not receive any of the proceeds from the additional sale of depositary shares by the selling stockholders.

conversion. For more information regarding the depositary shares, see Description of Depositary Shares.

Depositary

American Stock Transfer & Trust Company, LLC

Proposed New York Stock Exchange symbol

MX with the listing being only for the depositary shares upon the completion of this offering and only for the common stock following the cancellation of the depositary shares.

The number of shares of our common stock outstanding after this offering is based on the shares of our common stock outstanding as of the date
of this prospectus and:



reflects the consummation of the corporate conversion, pursuant to which all of the outstanding common units of MagnaChip Semiconductor LLC were automatically
converted into shares of our common stock at a ratio of eight-for-one and all of the outstanding options and warrants to purchase common units of MagnaChip Semiconductor LLC were automatically converted into options and warrants to purchase shares
of our common stock;



excludes 1,875,017 shares of our common stock reserved for issuance upon exercise of warrants outstanding as of December 31, 2010 at a weighted average
exercise price of $15.76 per share, based upon the conversion of all such warrants into warrants to purchase shares of our common stock at a ratio of eight-for-one;



excludes 1,957,760 shares of our common stock reserved for issuance upon exercise of options outstanding as of December 31, 2010 at a weighted average
exercise price of $6.33 per share, based upon the conversion of all such options into options to purchase shares of our common stock at a ratio of eight-for-one; and



excludes 1,680,190 shares of our common stock reserved for issuance following the offering pursuant to future grants under our 2011 Equity Incentive Plan and
2011 Employee Stock Purchase Plan, based in part on the number of shares of common stock reserved for issuance under our 2009 Plan as of December 31, 2010, which does not include the additional shares which may become available for issuance
pursuant to the automatic share reserve increase provisions of such plans described below.

The number of shares
authorized for future issuance under our 2011 Equity Incentive Plan and our 2011 Employee Stock Purchase Plan reflected above does not include additional shares that may become available for future issuance pursuant to the automatic share reserve
increase provisions of these plans. On January 1 of each year from 2012 through 2021, up to 2% and 1%, respectively, of the shares of our common stock issued and outstanding on the immediately preceding December 31 or, in each case, a
lesser amount determined by our board of directors, will be added automatically to the number of shares remaining available for future grants under the 2011 Equity Incentive Plan and the 2011 Employee Stock Purchase Plan.

Unless specifically stated otherwise, the information in this prospectus:



reflects completion of the corporate conversion;



assumes no exercise of the underwriters option to purchase up to 142,500 additional depositary shares from us and up to 1,282,500 additional depositary
shares from our selling stockholders; and



assumes an initial public offering price of $16.00 per depositary share, which is the midpoint of the range set forth on the front cover of this prospectus.

The following tables set forth summary historical and unaudited pro forma consolidated financial data of MagnaChip Semiconductor Corporation on or
as of the dates and for the periods indicated. The summary historical and unaudited pro forma consolidated financial data presented below should be read together with Selected Historical Consolidated Financial and Operating Data,
Unaudited Pro Forma Consolidated Financial Information, Managements Discussion and Analysis of Financial Condition and Results of Operations and our audited and unaudited consolidated financial statements, including the
notes to those consolidated financial statements, appearing elsewhere in this prospectus.

We have derived the summary historical
consolidated financial data as of December 31, 2010 and 2009, and for the year ended December 31, 2010, the two-month period ended December 31, 2009, the ten-month period ended October 25, 2009 and the year ended December 31,
2008 from the historical audited consolidated financial statements of MagnaChip Semiconductor Corporation prepared in accordance with generally accepted accounting principles in the United States, or GAAP, included elsewhere in this prospectus. The
summary historical financial data for the year ended December 31, 2010 and the two-month period ended December 31, 2009 give retroactive effect to the corporate conversion. The historical results of MagnaChip Semiconductor Corporation for any
prior period are not necessarily indicative of the results to be expected in any future period, and financial results for any interim period are not necessarily indicative of results for a full year.

In connection with our emergence from reorganization proceedings, we implemented fresh-start reporting, or fresh-start accounting, in accordance
with Accounting Standards Codification 852, or ASC 852, governing reorganizations. We elected to adopt a convenience date of October 25, 2009 (a month end for our financial reporting purposes) for application of fresh-start accounting. In
accordance with the ASC 852 rules governing reorganizations, we recorded largely non-cash reorganization income and expense items directly associated with our reorganization proceedings including professional fees, the revaluation of assets,
the effects of our reorganization plan and fresh-start accounting and write-off of debt issuance costs. As a result of the application of fresh-start accounting, our financial statements prior to and including October 25, 2009 represent the
operations of our pre-reorganization predecessor company and are presented separately from the financial statements of our post-reorganization successor company. As a result of the application of fresh-start accounting, the financial statements
prior to and including October 25, 2009 are not fully comparable with the financial statements for periods on or after October 26, 2009.

We have prepared the summary unaudited pro forma financial data as of and for the year ended December 31, 2010 to give pro forma effect to the reorganization proceedings and related events, the corporate
conversion and the issuance of $250 million senior notes and the application of the net proceeds therefrom, in each case as if they had occurred at January 1, 2010 with respect to consolidated statement of operations data. The summary
unaudited pro forma financial data set forth below are presented for informational purposes only, should not be considered indicative of actual results of operations that would have been achieved had the reorganization proceedings and related
events, the corporate conversion and the issuance of $250 million senior notes and the application of the net proceeds therefrom been consummated on the dates indicated, and do not purport to be indicative of our results of operations for any
future period.

Income (loss) from continuing operations attributable to common units/shares

$

74.1

$

(2.5

)

$

828.2

$

(339.1

)

Per common unit/share data:

Earnings (loss) from continuing operations per common unit/share

Basic

$

1.75

$

1.96

$

(0.07

)

$

15.65

$

(6.43

)

Diluted

$

1.70

$

1.89

$

(0.07

)

$

15.65

$

(6.43

)

Weighted average number of common units/stock

Basic

37.836

37.836

37.608

52.923

52.769

Diluted

39.144

39.144

37.608

52.923

52.769

Consolidated Balance Sheet Data (at period end):

Cash and cash equivalents

$

172.2

$

64.9

$

4.0

Total assets

625.7

453.3

399.2

Total indebtedness(2)

246.9

61.8

845.0

Long-term obligations(3)

250.0

61.5

143.2

Total unitholders/stockholders equity (deficit)

162.9

215.7

(787.8

)

Supplemental Data (unaudited):

Adjusted EBITDA(4)

$

157.9

$

157.9

$

22.1

$

76.6

$

59.8

Adjusted Net Income (Loss)(5)

80.6

89.2

13.3

9.3

(71.7

)

(1)

Gives effect to the reorganization proceedings and related events, the corporate conversion and the issuance of $250 million senior notes and the application of the net
proceeds therefrom. For details regarding these pro forma adjustments, see the notes to the unaudited pro forma condensed consolidated financial information in Unaudited Pro Forma Consolidated Financial Information.

(2)

Total indebtedness is calculated as long and short-term borrowings, including the current portion of long-term borrowings.

we believe that Adjusted EBITDA provides investors with a more consistent measurement of period to period performance of our core operations, as well as a
comparison of our operating performance to that of other companies in our industry.

We use Adjusted EBITDA in a number
of ways, including:



for planning purposes, including the preparation of our annual operating budget;



to evaluate the effectiveness of our enterprise level business strategies;



in communications with our board of directors concerning our consolidated financial performance; and



in certain of our compensation plans as a performance measure for determining incentive compensation payments.

We encourage you to evaluate each adjustment and the reasons we consider them appropriate. In evaluating Adjusted EBITDA, you should be aware that
in the future we may incur expenses similar to the adjustments in this presentation. Adjusted EBITDA is not a measure defined in accordance with GAAP and should not be construed as an alternative to income from continuing operations, cash flows from
operating activities or net income (loss), as determined in accordance with GAAP. A reconciliation of net income (loss) to Adjusted EBITDA is as follows:

Pro Forma

Historical

Successor

Predecessor

Year EndedDecember 31,2010

Year EndedDecember 31,2010

Two- MonthPeriod EndedDecember 31,2009

Ten- MonthPeriodEndedOctober 25,2009

Year
EndedDecember 31,2008

(In millions)

Net income (loss)

$

74.1

$

(2.0

)

$

841.1

$

(417.3

)

Less: Income (loss) from discontinued operations, net of taxes



0.5

6.6

(91.5

)

Income (loss) from continuing operations

$

66.4

74.1

(2.5

)

834.5

(325.8

)

Adjustments:

Depreciation and amortization associated with continuing operations

58.4

58.4

11.2

37.7

63.8

Interest expense, net

27.9

22.9

1.3

31.2

76.1

Income tax expenses

12.0

8.4

1.9

7.3

11.6

Restructuring and impairment charges(a)

2.0

2.0



0.4

13.4

Other restructuring charges(b)







13.3

6.2

Abandoned IPO expenses(c)









3.7

Reorganization items, net(d)







(804.6

)



Inventory step-up(e)



0.9

17.2





Equity-based compensation expense(f)

5.2

5.2

2.2

0.2

0.5

Foreign currency loss (gain), net(g)

(14.7

)

(14.7

)

(9.3

)

(43.4

)

210.4

Derivative valuation loss, net(h)

0.7

0.7







Adjusted EBITDA

$

157.9

$

157.9

$

22.1

$

76.6

$

59.8

(a)

This adjustment is comprised of all items included in the restructuring and impairment charges line item on our consolidated statements of operations, and eliminates the impact
of restructuring and impairment charges related to (i) for 2010, impairment charges of $2.0 million recorded, of which $1.6 million of impairment charges were recognized for abandoned in-process research and development projects and $0.4
million of impairment charges were recognized as a result of an annual impairment test of in-process research and development, accounted for as indefinite-lived intangible assets as part of the application of fresh-start accounting, (ii) for
2009, termination benefits and other related costs, for the ten-month period ended October 25, 2009 in connection with the closure of one of our research and development facilities in Japan, and (iii) for 2008, goodwill impairment
triggered by the significant adverse change in the revenue of our mobile display solutions, or MDS reporting unit, and a reversal of a portion of the restructuring accrual related to the closure of our Gumi five-inch wafer fabrication facilities in
2007. We do not believe these restructuring and impairment charges are indicative of our core ongoing operating performance because we do not anticipate similar facility closures and market driven events in our ongoing operations, although we cannot
guarantee that similar events will not occur in the future.

(b)

This adjustment relates to certain restructuring charges that are not included in the restructuring and impairment charges line item on our consolidated statements of operations.
These items are included in selling, general and administrative expenses in our consolidated statements of operations. These charges are comprised of the following: (i) for 2009, a charge of $13.3 million for restructuring-related
professional fees and related expenses and (ii) for 2008, a charge of $6.2 million for restructuring-related professional fees and related expenses. We do not believe these other restructuring charges are indicative of our core ongoing
operating performance because these charges were related, in significant part, to actions we took in response to the impacts on our business resulting from the global economic recession that persisted through 2008 and 2009. We cannot guarantee that
similar charges will not be incurred in the future.

(c)

This adjustment eliminates a $3.7 million charge in 2008 related to expenses incurred in connection with our abandoned initial public offering in 2008. We do not believe
that these charges are indicative of our core operating performance. We expect to incur similar costs in connection with this offering.

(d)

This adjustment eliminates the impact of largely non-cash reorganization income and expense items directly associated with our reorganization proceedings from
our ongoing operations including, among others, professional fees, the revaluation of assets, the effects of the Chapter 11 reorganization plan and fresh-start accounting principles and the write-off of debt issuance costs. Included in
reorganization items, net for the period from January 1 to October 25, 2009 was our predecessors gain recognized from the effects of our reorganization proceedings. The gain results from the difference between our predecessors
carrying

value of remaining pre-petition liabilities subject to compromise and the amounts to be distributed pursuant to the reorganization proceedings. The gain from the effects of the reorganization
proceedings and the application of fresh-start accounting principles is comprised of the discharge of liabilities subject to compromise, net of the issuance of new common units and new warrants and the accrual of amounts to be settled in cash. For
details regarding this adjustment, see note 5 to the consolidated financial statements of MagnaChip Semiconductor Corporation included elsewhere in this prospectus. We do not believe these items are indicative of our core ongoing operating
performance because they were incurred as a result of our Chapter 11 reorganization.

(e)

This adjustment eliminates the one-time impact on cost of sales associated with the write-up of our inventory in accordance with the principles of fresh-start accounting upon
consummation of the Chapter 11 reorganization.

(f)

This adjustment eliminates the impact of non-cash equity-based compensation expenses. Although we expect to incur non-cash equity-based compensation expenses in the future, we
believe that analysts and investors will find it helpful to review our operating performance without the effects of these non-cash expenses, as supplemental information.

(g)

This adjustment eliminates the impact of non-cash foreign currency translation associated with intercompany debt obligations and foreign currency denominated receivables and
payables, as well as the cash impact of foreign currency transaction gains or losses on collection of such receivables and payment of such payables. Although we expect to incur foreign currency translation gains or losses in the future, we believe
that analysts and investors will find it helpful to review our operating performance without the effects of these primarily non-cash gains or losses, as supplemental information.

(h)

This adjustment eliminates the impact of gain or loss recognized in income on derivatives, which represents hedge ineffectiveness or derivatives value changes excluded from the
risk being hedged. We enter into derivative transactions to mitigate foreign exchange risks. As our derivative transactions are limited to a certain portion of our expected cash flows denominated in USD, and we do not enter into derivative
transactions for trading or speculative purposes, we do not believe that these charges or gains are indicative of our core operating performance.

Adjusted EBITDA has limitations as an analytical tool, and you should not consider it in isolation, or as a substitute for analysis of our results as reported under GAAP. Some of
these limitations are:

Adjusted EBITDA does not reflect the interest expense, or the cash requirements necessary to service interest or principal payments, on our debt;



although depreciation and amortization are non-cash charges, the assets being depreciated and amortized will often have to be replaced in the future, and
Adjusted EBITDA does not reflect any cash requirements for such replacements;



Adjusted EBITDA does not consider the potentially dilutive impact of issuing equity-based compensation to our management team and employees;



Adjusted EBITDA does not reflect the costs of holding certain assets and liabilities in foreign currencies; and



other companies in our industry may calculate Adjusted EBITDA differently than we do, limiting its usefulness as a comparative measure.

Because of these limitations, Adjusted EBITDA should not be considered as a measure of discretionary cash available to us to invest in the growth of our business. We compensate
for these limitations by relying primarily on our GAAP results and using Adjusted EBITDA only supplementally.

(5)

We present Adjusted Net Income as a further supplemental measure of our performance. We prepare Adjusted Net Income by adjusting net income (loss) to eliminate the impact of a
number of non-cash expenses and other items that may be either one time or recurring that we do not consider to be indicative of our core ongoing operating performance. We believe that Adjusted Net Income is particularly useful because it reflects
the impact of our asset base and capital structure on our operating performance.

We present Adjusted Net Income for a number of reasons, including:



we use Adjusted Net Income in communications with our board of directors concerning our consolidated financial performance;



we believe that Adjusted Net Income is an enterprise level performance measure commonly reported and widely used by analysts and investors in our
industry; and



we anticipate that our investor and analyst presentations after we are public will include Adjusted Net Income.

Adjusted Net Income is not a measure defined in accordance with GAAP and should not be construed as an alternative to income from continuing operations, cash flows from operating
activities or net income (loss), as determined in accordance with GAAP. We encourage you to evaluate each adjustment and the reasons we consider them appropriate. Other companies in our industry may calculate Adjusted Net Income differently than we
do, limiting its usefulness as a comparative measure. In addition, in evaluating Adjusted Net Income, you should be aware that in the future we may incur expenses similar to the adjustments in this presentation. We define Adjusted Net Income as net
income (loss) less income (loss) from discontinued operations, net of taxes, excluding (i) restructuring and impairment charges, (ii) other restructuring charges, (iii) abandoned IPO expenses, (iv) reorganization items, net,
(v) the increase in cost of sales resulting from the fresh-start accounting inventory step-up, (vi) equity-based compensation expense, (vii) amortization of intangibles associated with continuing operations, (viii) foreign
currency gain (loss), net and (ix) derivative valuation gain (loss), net.

The following table summarizes the adjustments to net income (loss) that we make in order to
calculate Adjusted Net Income for the periods indicated:

Pro Forma

Historical

Successor

Predecessor

Year EndedDecember 31,2010

Year EndedDecember 31,2010

Two- MonthPeriod EndedDecember 31,2009

Ten- MonthPeriodEndedOctober 25,2009

Year
EndedDecember 31,2008

(In millions)

Net income (loss)

$

74.1

$

(2.0

)

$

841.1

$

(417.3

)

Less: Income (loss) from discontinued operations, net of taxes



0.5

6.6

(91.5

)

Income (loss) from continuing operations

$

66.4

74.1

(2.5

)

834.5

(325.8

)

Adjustments:

Restructuring and impairment charges(a)

2.0

2.0



0.4

13.4

Other restructuring charges(b)







13.3

6.2

Abandoned IPO expenses(c)









3.7

Reorganization items, net(d)







(804.6

)



Inventory step-up(e)



0.9

17.2





Equity-based compensation expense(f)

5.2

5.2

2.2

0.2

0.5

Amortization of intangibles associated with continuing operations(g)

21.0

21.0

5.6

8.8

20.0

Foreign currency loss (gain), net(h)

(14.7

)

(14.7

)

(9.3

)

(43.4

)

210.4

Derivative valuation loss, net(i)

0.7

0.7







Adjusted Net income (loss)

$

80.6

$

89.2

$

13.3

$

9.3

$

(71.7

)

(a)

This adjustment is comprised of all items included in the restructuring and impairment charges line item on our consolidated statements of operations, and eliminates the impact
of restructuring and impairment charges related to (i) for 2010, impairment charges of $2.0 million recorded, of which $1.6 million of impairment charges were recognized for abandoned in-process research and development projects and $0.4
million of impairment charges were recognized as a result of an annual impairment test of in-process research and development, accounted for as indefinite-lived intangible assets as part of the application of fresh-start accounting, (ii) for
2009, termination benefits and other related costs, for the ten-month period ended October 25, 2009 in connection with the closure of one of our research and development facilities in Japan, and (iii) for 2008, goodwill impairment
triggered by the significant adverse change in the revenue of our MDS reporting unit and a reversal of a portion of the restructuring accrual related to the closure of our Gumi five-inch wafer fabrication facilities in 2007. We do not believe these
restructuring and impairment charges are indicative of our core ongoing operating performance because we do not anticipate similar facility closures and market driven events in our ongoing operations, although we cannot guarantee that similar events
will not occur in the future.

(b)

This adjustment relates to certain restructuring charges that are not included in the restructuring and impairment charges line item on our consolidated statements of operations.
These items are included in selling, general and administrative expenses in our consolidated statements of operations. These charges are comprised of the following: (i) for 2009, a charge of $13.3 million for restructuring-related
professional fees and related expenses, and (ii) for 2008, a charge of $6.2 million for restructuring-related professional fees and related expenses. We do not believe these other restructuring charges are indicative of our core ongoing
operating performance because these charges were related, in significant part, to actions we took in response to the impacts on our business resulting from the global economic recession that persisted through 2008 and 2009. We cannot guarantee that
similar charges will not be incurred in the future.

(c)

This adjustment eliminates a $3.7 million charge in 2008 related to expenses incurred in connection with our abandoned initial public offering in 2008. We do not believe that
these charges are indicative of our core operating performance. We expect to incur similar costs in connection with this offering.

(d)

This adjustment eliminates the impact of largely non-cash reorganization income and expense items directly associated with our reorganization proceedings from our ongoing
operations including, among others, professional fees, the revaluation of assets, the effects of the Chapter 11 reorganization plan and fresh-start accounting principles and the write-off of debt issuance costs. Included in reorganization
items, net for the ten-month period ended October 25, 2009 was our predecessors gain recognized from the effects of our reorganization proceedings. The gain results from the difference between our predecessors carrying value of
remaining pre-petition liabilities subject to compromise and the amounts to be distributed pursuant to the reorganization proceedings. The gain from the effects of the reorganization proceedings and the application of fresh-start accounting
principles is comprised of the discharge of liabilities subject to compromise, net of the issuance of new common units and new warrants and the accrual of amounts to be settled in cash. For details regarding this adjustment, see note 5 to the
consolidated financial statements of MagnaChip Semiconductor Corporation included elsewhere in this prospectus. We do not believe these items are indicative of our core ongoing operating performance because they were incurred as a result of our
reorganization proceedings.

(e)

This adjustment eliminates the one-time impact on cost of sales associated with the write-up of our inventory in accordance with the principles of fresh-start accounting upon
consummation of the Chapter 11 reorganization.

(f)

This adjustment eliminates the impact of non-cash equity-based compensation expenses. Although we expect to incur non-cash equity-based compensation expenses in the future, we
believe that analysts and investors will find it helpful to review our operating performance without the effects of these non-cash expenses, as supplemental information.

This adjustment eliminates the non-cash impact of amortization expense for intangible assets created as a result of the purchase accounting treatment of the Original Acquisition
and other subsequent acquisitions, and from the application of fresh-start accounting in connection with the reorganization proceedings. We do not believe these non-cash amortization expenses for intangibles are indicative of our core ongoing
operating performance because the assets would not have been capitalized on our balance sheet but for the application of acquisition accounting or fresh-start accounting, as applicable.

(h)

This adjustment eliminates the impact of non-cash foreign currency translation associated with intercompany debt obligations and foreign currency denominated receivables and
payables, as well as the cash impact of foreign currency transaction gains or losses on collection of such receivables and payment of such payables. Although we expect to incur foreign currency translation gains or losses in the future, we believe
that analysts and investors will find it helpful to review our operating performance without the effects of these primarily non-cash gains or losses, as supplemental information.

(i)

This adjustment eliminates the impact of gain or loss recognized in income on derivatives, which represents hedge ineffectiveness or derivatives value changes excluded from the
risk being hedged. We enter into derivative transactions to mitigate foreign exchange risks. As our derivative transactions are limited to a certain portion of our expected cash flows denominated in USD, and we do not enter into derivative
transactions for trading or speculative purposes, we do not believe that these charges or gains are indicative of our core operating performance.

Adjusted Net Income has limitations as an analytical tool, and you should not consider it in isolation, or as a substitute for analysis of our results as reported under GAAP.
Some of these limitations are:



Adjusted Net Income does not reflect our cash expenditures, or future requirements, for capital expenditures or contractual commitments;



Adjusted Net Income does not reflect changes in, or cash requirements for, our working capital needs;



Adjusted Net Income does not consider the potentially dilutive impact of issuing equity-based compensation to our management team and employees;



Adjusted Net Income does not reflect the costs of holding certain assets and liabilities in foreign currencies; and



other companies in our industry may calculate Adjusted Net Income differently than we do, limiting its usefulness as a comparative measure.

Because of these limitations, Adjusted Net Income should not be considered as a measure of discretionary cash available to us to invest in the growth of our business. We
compensate for these limitations by relying primarily on our GAAP results and using Adjusted Net Income only supplementally.

You should carefully consider the risk factors set forth below as well as the other information contained in this prospectus before investing in
our common stock. Any of the following risks could materially and adversely affect our business, financial condition or results of operations. As a result, the price of our common stock could decline and you could lose all or part of your investment
in our common stock. Additional risks and uncertainties not currently known to us or those currently viewed by us to be immaterial may also materially and adversely affect our business, financial condition or results of operations.

Risks Related to Our Business

We have a history of
losses and may not achieve or sustain profitability in the future.

Since we began operations as a separate entity in 2004, we
have not generated a profit for a full fiscal year and have generated significant net losses. As of October 25, 2009, prior to our emergence from reorganization proceedings, we had an accumulated deficit of $964.8 million and negative
unitholders equity. We may increase spending and we currently expect to incur higher expenses in each of the next several quarters to support increased research and development and sales and marketing efforts. These expenditures may not result
in increased revenue or an increase in the number of customers immediately or at all. Because many of our expenses are fixed in the short term, or are incurred in advance of anticipated sales, we may not be able to decrease our expenses in a timely
manner to offset any shortfall of sales.

On June 12, 2009, we filed a voluntary petition for relief under Chapter 11 of the United States Bankruptcy Code in order to obtain relief
from our debt, which was $845 million as of December 31, 2008. Our plan of reorganization became effective on November 9, 2009. In connection with our emergence from the reorganization proceedings, we implemented fresh-start
accounting in accordance with ASC 852 effective from October 25, 2009, which had a material effect on our consolidated financial statements. Thus, our future consolidated financial statements will not be comparable in many respects to our
consolidated financial statements for periods prior to our adoption of fresh-start accounting and prior to accounting for the effects of the reorganization proceedings. Our past financial difficulties and bankruptcy filing may have harmed, and may
continue to have a negative effect on, our relationships with investors, customers and suppliers.

We operate in the highly cyclical semiconductor
industry, which is subject to significant downturns that may negatively impact our results of operations.

The semiconductor
industry is highly cyclical and is characterized by constant and rapid technological change and price erosion, evolving technical standards, short product life cycles (for semiconductors and for the end-user products in which they are used) and wide
fluctuations in product supply and demand. From time to time, these and other factors, together with changes in general economic conditions, cause significant upturns and downturns in the industry in general and in our business in particular.
Periods of industry downturns, including the recent economic downturn, have been characterized by diminished demand for end-user products, high inventory levels, underutilization of manufacturing capacity, changes in revenue mix and accelerated
erosion of average selling prices. We have experienced these conditions in our business in the past and may experience renewed, and possibly more severe and prolonged, downturns in the future as a result of such cyclical changes. This may reduce our
results of operations.

We base our planned operating expenses in part on our expectations of future revenue, and a
significant portion of our expenses is relatively fixed in the short term. If revenue for a particular quarter is lower than we expect, we likely will be unable to proportionately reduce our operating expenses for that quarter, which would harm our
operating results for that quarter.

If we fail to develop new products and process technologies or enhance our existing products and services in
order to react to rapid technological change and market demands, our business will suffer.

Our industry is subject to constant
and rapid technological change and product obsolescence as customers and competitors create new and innovative products and technologies. Products or technologies developed by other companies may render our products or technologies obsolete or
noncompetitive, and we may not be able to access advanced process technologies, including smaller geometries, or to license or otherwise obtain essential intellectual property required by our customers.

We must develop new products and services and enhance our existing products and services to meet rapidly evolving customer requirements. We design
products for customers who continually require higher performance and functionality at lower costs. We must, therefore, continue to enhance the performance and functionality of our products. The development process for these advancements is lengthy
and requires us to accurately anticipate technological changes and market trends. Developing and enhancing these products is uncertain and can be time-consuming, costly and complex. If we do not continue to develop and maintain process technologies
that are in demand by our semiconductor manufacturing services customers, we may be unable to maintain existing customers or attract new customers.

Customer and market requirements can change during the development process. There is a risk that these developments and enhancements will be late, fail to meet customer or market specifications or not be
competitive with products or services from our competitors that offer comparable or superior performance and functionality. Any new products, such as our new line of power management solutions, which we began marketing in 2008, or product or service
enhancements, may not be accepted in new or existing markets. Our business will suffer if we fail to develop and introduce new products and services or product and service enhancements on a timely and cost-effective basis.

We manufacture our products based on our estimates of customer demand, and if our estimates are incorrect our financial results could be negatively impacted.

We make significant decisions, including determining the levels of business that we will seek and accept, production schedules,
component procurement commitments, personnel needs and other resource requirements  based on our estimates of customer demand and expected demand for and success of their products. The short-term nature of commitments by many of our customers
and the possibility of rapid changes in demand for their products reduces our ability to estimate accurately future customer demand for our products. On occasion, customers may require rapid increases in supply, which can challenge our production
resources and reduce margins. We may not have sufficient capacity at any given time to meet our customers increased demand for our products. Conversely, downturns in the semiconductor industry have caused and may in the future cause our
customers to reduce significantly the amount of products they order from us. Because many of our costs and operating expenses are relatively fixed, a reduction in customer demand would decrease our results of operations, including our gross profit.

Our customers may cancel their orders, reduce quantities or delay production, which would adversely affect our
margins and results of operations.

We generally do not obtain firm, long-term purchase commitments from our customers. Customers
may cancel their orders, reduce quantities or delay production for a number of reasons. Cancellations, reductions or delays by a significant customer or by a group of customers, which we have experienced as a result of periodic downturns in the
semiconductor industry or failure to achieve design wins, have affected and may continue to affect our results of operations adversely. These risks are exacerbated because many of our products are customized, which hampers our ability to sell excess
inventory to the general market. We may incur charges resulting from the write-off of obsolete inventory. In addition, while we do not obtain long-term purchase commitments, we generally agree to the pricing of a particular product over a set period
of time. If we underestimate our costs when determining pricing, our margins and results of operations would be adversely affected.

We depend on
high utilization of our manufacturing capacity, a reduction of which could have a material adverse effect on our business, financial condition and the results of our operations.

An important factor in our success is the extent to which we are able to utilize the available capacity in our fabrication facilities. As many of
our costs are fixed, a reduction in capacity utilization, as well as changes in other factors, such as reduced yield or unfavorable product mix, could reduce our profit margins and adversely affect our operating results. A number of factors and
circumstances may reduce utilization rates, including periods of industry overcapacity, low levels of customer orders, operating inefficiencies, mechanical failures and disruption of operations due to expansion or relocation of operations, power
interruptions and fire, flood or other natural disasters or calamities. The potential delays and costs resulting from these steps could have a material adverse effect on our business, financial condition and results of operations.

A significant portion of our sales comes from a relatively limited number of customers, the loss of which would adversely affect our financial results.

Historically, we have relied on a limited number of customers for a substantial portion of our total revenue. If we were to lose
key customers or if customers cease to place orders for our high-volume products or services, our financial results would be adversely affected. Net sales to our ten largest customers represented 63%, 66%, 69% and 63% of our net sales for the year
ended December 31, 2010, the two-month period ended December 31, 2009, the ten-month period ended October 25, 2009 and the year ended December 31, 2008, respectively. LG Display represented 16% and 26% of our net sales and a
substantial portion of the net sales generated by our top ten customers for the year ended December 31, 2010 and the combined twelve-month period ended December 31, 2009. Significant reductions in sales to any of these customers, especially our
few largest customers, the loss of other major customers or a general curtailment in orders for our high-volume products or services within a short period of time would adversely affect our business.

The average selling prices of our semiconductor products have at times declined rapidly and will likely do so in the future, which could harm our revenue and
gross profit.

The semiconductor products we develop and sell are subject to rapid declines in average selling prices. From time
to time, we have had to reduce our prices significantly to meet customer requirements, and we may be required to reduce our prices in the future. This would cause our gross profit to decrease. Our financial results will suffer if we are unable to
offset any reductions in our average selling prices by increasing our sales volumes, reducing our costs or developing new or enhanced products on a timely basis with higher selling prices or gross profit.

Our industry is highly competitive and our ability to compete could be negatively impacted by a variety of
factors.

The semiconductor industry is highly competitive and includes hundreds of companies, a number of which have achieved
substantial market share both within our product categories and end markets. Current and prospective customers for our products and services evaluate our capabilities against the merits of our competitors. Some of our competitors are well
established as independent companies and have substantially greater market share and manufacturing, financial, research and development and marketing resources than we do. We also compete with emerging companies that are attempting to sell their
products in certain of our end markets and with the internal semiconductor design and manufacturing capabilities of many of our significant customers. We expect to experience continuing competitive pressures in our markets from existing competitors
and new entrants.

Any consolidation among our competitors could enhance their product offerings and financial resources, further
enhancing their competitive position. Our ability to compete will depend on a number of factors, including the following:



our ability to offer cost-effective and high quality products and services on a timely basis using our technologies;



our ability to accurately identify and respond to emerging technological trends and demand for product features and performance characteristics;



our ability to continue to rapidly introduce new products that are accepted by the market;



our ability to adopt or adapt to emerging industry standards;



the number and nature of our competitors and competitiveness of their products and services in a given market;



entrance of new competitors into our markets;



our ability to enter the highly competitive power management market; and

Many of these factors are outside of our control. In the future, our competitors may replace us as a supplier to our existing or potential customers, and our
customers may satisfy more of their requirements internally. As a result, we may experience declining revenues and results of operations.

Changes
in demand for consumer electronics in our end markets can impact our results of operations.

Demand for our products will depend
in part on the demand for various consumer electronics products, in particular, mobile phones and multimedia devices, digital televisions, flat panel displays, mobile PCs and digital cameras, which in turn depends on general economic conditions and
other factors beyond our control. If our customers fail to introduce new products that employ our products or component parts, demand for our products will suffer. To the extent that we cannot offset periods of reduced demand that may occur in these
markets through greater penetration of these markets or reduction in our production and costs, our sales and gross profit may decline, which would negatively impact our business, financial condition and results of operations.

If we fail to achieve design wins for our semiconductor products, we may lose the opportunity for sales to
customers for a significant period of time and be unable to recoup our investments in our products.

We expend considerable
resources on winning competitive selection processes, known as design wins, to develop semiconductor products for use in our customers products. These selection processes are typically lengthy and can require us to incur significant design and
development expenditures. We may not win the competitive selection process and may never generate any revenue despite incurring significant design and development expenditures. Once a customer designs a semiconductor into a product, that customer is
likely to continue to use the same semiconductor or enhanced versions of that semiconductor from the same supplier across a number of similar and successor products for a lengthy period of time due to the significant costs associated with qualifying
a new supplier and potentially redesigning the product to incorporate a different semiconductor. If we fail to achieve an initial design win in a customers qualification process, we may lose the opportunity for significant sales to that
customer for a number of products and for a lengthy period of time. This may cause us to be unable to recoup our investments in our semiconductor products, which would harm our business.

We have lengthy and expensive design-to-mass production and manufacturing process development cycles that may cause us to incur significant expenses without realizing meaningful sales, the occurrence of which
would harm our business.

The cycle time from the design stage to mass production for some of our products is long and requires
the investment of significant resources with many potential customers without any guarantee of sales. Our design-to-mass production cycle typically begins with a three-to-twelve month semiconductor development stage and test period followed by a
three-to-twelve month end-product qualification period by our customers. The fairly lengthy front end of our sales cycle creates a risk that we may incur significant expenses but may be unable to realize meaningful sales. Moreover, prior to mass
production, customers may decide to cancel their products or change production specifications, resulting in sudden changes in our product specifications, increasing our production time and costs. Failure to meet such specifications may also delay
the launch of our products or result in lost sales.

In addition, we collaborate and jointly develop certain process technologies and
manufacturing process flows custom to certain of our semiconductor manufacturing services customers. To the extent that our semiconductor manufacturing services customers fail to achieve market acceptance for their products, we may be unable to
recoup our engineering resources commitment and our investment in process technology development, which would harm our business.

Research and
development investments may not yield profitable and commercially viable product and service offerings and thus will not necessarily result in increases in revenues for us.

We invest significant resources in our research and development. Our research and development efforts, however, may not yield commercially viable
products or enhance our semiconductor manufacturing services offerings. During each stage of research and development there is a substantial risk that we will have to abandon a potential product or service offering that is no longer marketable and
in which we have invested significant resources. In the event we are able to develop viable new products or service offerings, a significant amount of time will have elapsed between our investment in the necessary research and development effort and
the receipt of any related revenues.

We face numerous challenges relating to executing our growth strategy, and if we are unable to execute our
growth strategy effectively, our business and financial results could be materially and adversely affected.

Our growth strategy
is to leverage our advanced analog and mixed-signal technology platform, continue to innovate and deliver new products and services, increase business with existing customers, broaden our customer base, aggressively grow our power business, drive
execution excellence and focus on specialty process technologies. As part of our growth strategy, we began marketing a new line of power management semiconductor products in 2008 and expect to introduce other new products and services in the future.
If we are unable to execute our growth strategy effectively, we may not be able to take advantage of market opportunities, execute our business plan or respond to competitive pressures. Moreover, if our allocation of resources does not correspond
with future demand for particular products, we could miss market opportunities and our business and financial results could be materially and adversely affected.

We are subject to risks associated with currency fluctuations, and changes in the exchange rates of applicable currencies could impact our results of operations.

Historically, a portion of our revenues and greater than the majority of our operating expenses and costs of sales have been denominated in
non-U.S. currencies, principally the Korean won, and we expect that this will remain true in the future. Because we report our results of operations in U.S. dollars, changes in the exchange rate between the Korean won and the
U.S. dollar could materially impact our reported results of operations and distort period to period comparisons. In particular, because of the difference in the amount of our consolidated revenues and expenses that are in U.S. dollars
relative to Korean won, a depreciation in the U.S. dollar relative to the Korean won could result in a material increase in reported costs relative to revenues, and therefore could cause our profit margins and operating income to appear to
decline materially, particularly relative to prior periods. The converse is true if the U.S. dollar were to appreciate relative to the Korean won. Fluctuations in foreign currency exchange rates also impact the reporting of our receivables and
payables in non-U.S. currencies. Foreign currency fluctuations had a materially beneficial impact on our results of operations in the fiscal year ended December 31, 2008 relative to the fiscal year ended December 31, 2007, as well as in
the combined twelve-month period ended December 31, 2009 relative to the fiscal year ended December 31, 2008. However, foreign currency fluctuation had an unfavorable impact on our reported profit margins and operating income from
continuing operations for the year ended December 31, 2010 compared to the combined twelve-month period ended December 31, 2009. As a result of foreign currency fluctuations, it could be more difficult to detect underlying trends in our
business and results of operations. In addition, to the extent that fluctuations in currency exchange rates cause our results of operations to differ from our expectations or the expectations of our investors, the trading price of our stock
following the completion of this offering could be adversely affected.

From time to time, we may engage in exchange rate hedging
activities in an effort to mitigate the impact of exchange rate fluctuations. For example, in January 2010 and May 2010 our Korean subsidiary entered into foreign currency option and forward contracts in order to mitigate a portion of the impact of
U.S. dollar-Korean won exchange rate fluctuations on our operating results. The January 2010 option and forward contracts require us to sell specified notional amounts in U.S. dollars and provide us the option to sell specified notional
amounts in U.S. dollars during each month of 2010 commencing February 2010 to our counterparty, in each case, in exchange for Korean won at specified exchange rates. The May 2010 option and forward contracts require us to sell specified
notional amounts in U.S. dollars and provide us the option to sell specified notional amounts in U.S. dollars during the months of January 2011 through June 2011 to our counterparty, in each case, in exchange for Korean won at specified fixed
exchange rates. In August 2010 our Korean subsidiary additionally entered into zero cost

collar contracts for the same purpose as the above hedge contracts. The August 2010 zero cost collar contracts require us to sell specified notional amounts in U.S. dollars and provide us the
option to sell specified notional amounts in U.S. dollars during the months of July 2011 through December 2011 to our counterparty, in each case, in exchange for Korean won at specified fixed exchange rates. Obligations under these foreign
currency option, forward and zero cost collar contracts must be cash collateralized if our exposure exceeds certain specified thresholds. These option, forward and zero cost collar contracts may be terminated by the counterparty in a number of
circumstances, including if our long-term debt rating falls below B-/B3 or if our total cash and cash equivalents is less than $30 million at the end of a fiscal quarter. We cannot assure you that any hedging technique we implement will be
effective. If our hedging activities are not effective, changes in currency exchange rates may have a more significant impact on our results of operations. See Managements Discussion and Analysis of Financial Condition and Results of
OperationsFactors Affecting our Results of Operations.

The
global recession and related financial crisis led to slower economic activity, increased unemployment, concerns about inflation and energy costs, decreased business and consumer confidence, reduced corporate profits and capital spending, adverse
business conditions and lower levels of liquidity in many financial markets. Consumers and businesses deferred purchases in response to tighter credit and negative financial news, which has in turn negatively affected product demand and other
related matters. The global recession led to reduced customer spending in the semiconductor market and in our target markets, made it difficult for our customers, our vendors and us to accurately forecast and plan future business activities, and
caused U.S. and foreign businesses to slow spending on our products. Although recently there have been indications of improved economic conditions generally and in the semiconductor industry specifically, we cannot assure you of the extent to
which such conditions will continue to improve or whether the improvement will be sustainable. If the global economic recovery is not sustained or the global economy experiences another recession, such adverse economic conditions could lead to the
insolvency of key suppliers resulting in product delays, limit the ability of customers to obtain credit to finance purchases of our products, lead to customer insolvencies, and also result in counterparty failures that may negatively impact our
treasury operations. As a result, our business, financial condition and result of operations could be materially adversely affected in future periods as a result of economic downturns.

The loss of our key employees would materially adversely affect our business, and we may not be able to attract or retain the technical or management employees necessary to compete in our industry.

Our key executives have substantial experience and have made significant contributions to our business, and our continued
success is dependent upon the retention of our key management executives, including our Chief Executive Officer and Chairman, Sang Park. The loss of such key personnel would have a material adverse effect on our business. In addition, our future
success depends on our ability to attract and retain skilled technical and managerial personnel. We do not know whether we will be able to retain all of these employees as we continue to pursue our business strategy. The loss of the services of key
employees, especially our key design and technical personnel, or our inability to retain, attract and motivate qualified design and technical personnel could have a material adverse effect on our business, financial condition and results of
operations. This could hinder our research and product development programs or otherwise have a material adverse effect on our business.

If we encounter future labor problems, we may fail to deliver our products and services in a timely manner,
which could adversely affect our revenues and profitability.

As of December 31, 2010, 2,208 employees, or approximately
66.2% of our employees, were represented by the MagnaChip Semiconductor Labor Union, which is a member of the Federation of Korean Metal Workers Trade Unions. We can offer no assurance that issues with the labor union and other employees will be
resolved favorably for us in the future, that we will not experience work stoppages or other labor problems in future years or that we will not incur significant expenses related to such issues.

We may incur costs to engage in future business combinations or strategic investments, and we may not realize the anticipated benefits of those transactions.

As part of our business strategy, we may seek to enter into business combinations, investments, joint ventures and other
strategic alliances with other companies in order to maintain and grow revenue and market presence as well as to provide us with access to technology, products and services. Any such transaction would be accompanied by risks that may harm our
business, such as difficulties in assimilating the operations, personnel and products of an acquired business or in realizing the projected benefits, disruption of our ongoing business, potential increases in our indebtedness and contingent
liabilities and charges if the acquired company or assets are later determined to be worth less than the amount paid for them in an earlier original acquisition. In addition, our indebtedness may restrict us from making acquisitions that we may
otherwise wish to pursue.

The manufacture of semiconductors involves highly complex processes that require precision, a highly regulated and sterile environment and
specialized equipment. Defects or other difficulties in the manufacturing process can prevent us from achieving acceptable yields in the manufacture of our products or those of our semiconductor manufacturing services customers, which could lead to
higher costs, a loss of customers or delay in market acceptance of our products. Slight impurities or defects in the photomasks used to print circuits on a wafer or other factors can cause significant difficulties, particularly in connection with
the production of a new product, the adoption of a new manufacturing process or any expansion of our manufacturing capacity and related transitions. We may also experience manufacturing problems in achieving acceptable yields as a result of, among
other things, transferring production to other facilities, upgrading or expanding existing facilities or changing our process technologies. Yields below our target levels can negatively impact our gross profit and may cause us to eliminate
underperforming products.

We rely on a number of independent subcontractors and the failure of any of these independent subcontractors to perform
as required could adversely affect our operating results.

A substantial portion of our net sales are derived from semiconductor
devices assembled in packages or on film. The packaging and testing of semiconductors require technical skill and specialized equipment. For the portion of packaging and testing that we outsource, we use subcontractors located in Korea, China,
Taiwan, Malaysia and Thailand. We rely on these subcontractors to package and test our devices with acceptable quality and yield levels. We could be adversely affected by political disorders, labor disruptions, and natural disasters where our
subcontractors are located. If our semiconductor packagers and test service providers experience problems in packaging and testing our semiconductor devices, experience prolonged quality or yield problems or decrease the capacity available to us,
our operating results could be adversely affected.

We depend on successful parts and materials procurement for our manufacturing processes, and a shortage or
increase in the price of these materials could interrupt our operations and result in a decline of revenues and results of operations.

We procure materials and electronic and mechanical components from international sources and original equipment manufacturers. We use a wide range of parts and materials in the production of our semiconductors,
including silicon, processing chemicals, processing gases, precious metals and electronic and mechanical components, some of which, such as silicon wafers, are specialized raw materials that are generally only available from a limited number of
suppliers. We do not have long-term agreements providing for all of these materials, thus, if demand increases or supply decreases, the costs of our raw materials could significantly increase. For example, worldwide supplies of silicon wafers, an
important raw material for the semiconductors we manufacture, were constrained in recent years due to an increased demand for silicon. Silicon is also a key raw material for solar cells, the demand for which has increased in recent years. Although
supplies of silicon have recently improved due to the entrance of additional suppliers and capacity expansion by existing suppliers, we cannot assure you that such supply increases will match demand increases. If we cannot obtain adequate materials
in a timely manner or on favorable terms for the manufacture of our products, revenues and results of operations will decline.

We face warranty
claims, product return, litigation and liability risks and the risk of negative publicity if our products fail.

Our
semiconductors are incorporated into a number of end products, and our business is exposed to product return, warranty and product liability risk and the risk of negative publicity if our products fail. Although we maintain insurance for product
liability claims, the amount and scope of our insurance may not be adequate to cover a product liability claim that is asserted against us. In addition, product liability insurance could become more expensive and difficult to maintain and, in the
future, may not be available on commercially reasonable terms, or at all.

In addition, we are exposed to the product liability risk and
the risk of negative publicity affecting our customers. Our sales may decline if any of our customers are sued on a product liability claim. We also may suffer a decline in sales from the negative publicity associated with such a lawsuit or with
adverse public perceptions in general regarding our customers products. Further, if our products are delivered with impurities or defects, we could incur additional development, repair or replacement costs, and our credibility and the
markets acceptance of our products could be harmed.

We could suffer adverse tax and other financial consequences as a result of changes in,
or differences in the interpretation of, applicable tax laws.

Our company organizational structure was created in part based on
certain interpretations and conclusions regarding various tax laws, including withholding tax and other tax laws of applicable jurisdictions. Our Korean subsidiary, MagnaChip Semiconductor, Ltd., or MagnaChip Korea, was granted a limited tax holiday
under Korean law in October 2004. This grant provided for certain tax exemptions for corporate taxes and withholding taxes until December 31, 2008, and for acquisition taxes, property and land use taxes and certain other taxes until
December 31, 2013. Our interpretations and conclusions regarding tax laws, however, are not binding on any taxing authority and, if these interpretations and conclusions are incorrect, if our business were to be operated in a way that rendered
us ineligible for tax exemptions or caused us to become subject to incremental tax, or if the authorities were to change, modify, or have a different interpretation of the relevant tax laws, we could suffer adverse tax and other financial
consequences and the anticipated benefits of our organizational structure could be materially impaired.

Our ability to compete successfully and achieve future growth will depend, in part, on our ability to protect
our proprietary technology and know-how, as well as our ability to operate without infringing the proprietary rights of others.

We seek to protect our proprietary technologies and know-how through the use of patents, trade secrets, confidentiality agreements and other
security measures. The process of seeking patent protection takes a long time and is expensive. There can be no assurance that patents will issue from pending or future applications or that, if patents issue, they will not be challenged, invalidated
or circumvented, or that the rights granted under the patents will provide us with meaningful protection or any commercial advantage. Some of our technologies are not covered by any patent or patent application. The confidentiality agreements on
which we rely to protect these technologies may be breached and may not be adequate to protect our proprietary technologies. We cannot assure you that other countries in which we market our services will protect our intellectual property rights to
the same extent as the United States. In particular, the validity, enforceability and scope of protection of intellectual property in China, where we derive a significant portion of our net sales, and certain other countries where we derive net
sales, are uncertain and still evolving and historically have not protected and may not protect in the future, intellectual property rights to the same extent as do the laws and enforcement procedures in the United States.

Our ability to compete successfully depends on our ability to operate without infringing the proprietary rights of others. We have no means of
knowing what patent applications have been filed in the United States until they are published. In addition, the semiconductor industry is characterized by frequent litigation regarding patent and other intellectual property rights. We may need to
file lawsuits to enforce our patents or intellectual property rights, and we may need to defend against claimed infringement of the rights of others. Any litigation could result in substantial costs to us and divert our resources. Despite our
efforts in bringing or defending lawsuits, we may not be able to prevent third parties from infringing upon or misappropriating our intellectual property. In the event of an adverse outcome in any such litigation, we may be required to:

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pay substantial damages or indemnify customers or licensees for damages they may suffer if the products they purchase from us or the technology they license from
us violate the intellectual property rights of others;

obtain licenses to the intellectual property we are found to have infringed.

There can be no assurance that we would be successful in such development or acquisition or that such licenses would be available under reasonable
terms, or at all. The termination of key third party licenses relating to the use of intellectual property in our products and our design processes, such as our agreements with Silicon Works Co., Ltd. and ARM Limited, would materially and adversely
affect our business.

Our competitors may develop, patent or gain access to know-how and technology similar to our own. In addition,
many of our patents are subject to cross licenses, several of which are with our competitors. The noncompetition arrangement agreed to by Hynix in connection with the Original Acquisition expired on October 1, 2007. Under that arrangement,
Hynix retained a perpetual license to use the intellectual property that we acquired from Hynix in the Original Acquisition. Since noncompetition restrictions have expired, Hynix and its subsidiaries are free to develop products that may incorporate
or embody intellectual property developed by us prior to October 2004.

Our expenses could increase if Hynix were unwilling or unable to provide certain services related to our shared
facilities with Hynix, and if Hynix were to become insolvent, we could lose certain of our leases.

We are party to a land lease
and easement agreement with Hynix pursuant to which we lease the land for our facilities in Cheongju, Korea. If this agreement were terminated for any reason, including the insolvency of Hynix, we would have to renegotiate new lease terms with Hynix
or the new owner of the land. We cannot assure you that we could negotiate new lease terms on favorable terms or at all. Because we share certain facilities with Hynix, several services that are essential to our business are provided to us by or
through Hynix under our general service supply agreement with Hynix. These services include electricity, bulk gases and de-ionized water, campus facilities and housing, wastewater and sewage management, environmental safety and certain utilities and
infrastructure support services. If any of our agreements with Hynix were terminated or if Hynix were unwilling or unable to fulfill its obligations to us under the terms of these agreements, we would have to procure these services on our own and as
a result may experience an increase in our expenses.

We are subject to many environmental laws and regulations that could affect our operations
or result in significant expenses.

We are subject to requirements of environmental, health and safety laws and regulations in
each of the jurisdictions in which we operate, governing air emissions, wastewater discharges, the generation, use, handling, storage and disposal of, and exposure to, hazardous substances (including asbestos) and wastes, soil and groundwater
contamination and employee health and safety. These laws and regulations are complex, change frequently and have tended to become more stringent over time. There can be no assurance that we have been, or will be, in compliance with all such laws and
regulations or that we will not incur material costs or liabilities in connection with these laws and regulations in the future. The adoption of new environmental, health and safety laws, the failure to comply with new or existing laws, or issues
relating to hazardous substances could subject us to material liability (including substantial fines or penalties), impose the need for additional capital equipment or other process requirements upon us, curtail our operations or restrict our
ability to expand operations.

Our Korean subsidiary has been designated as a regulated business under Korean environmental law, and such
designation could have an adverse effect on our financial position and results of operations.

In April 2010, the Korean
governments Enforcement Decree to the Framework Act on Low Carbon Green Growth, or the Enforcement Decree, became effective. Businesses that exceed 25,000 tons of greenhouse gas emissions and 100 terajoules of energy consumption for the
prior three years will be subject to regulation and will be required to submit plans to reduce greenhouse emissions and energy consumption as well as performance reports and will be subject to government requirements to take further action. Our
Korean subsidiary meets the thresholds under the Enforcement Decree and was designated as a regulated business on September 28, 2010. Our Korean subsidiary will have until September 2011 and December 2011 to cooperate and negotiate with Korean
governmental authorities to set reduction targets and draft an implementation plan, respectively. If the ultimate implementation plan agreed upon with Korean governmental authorities requires us to reduce our emissions or energy consumption, we
could be subject to additional and potentially costly compliance or remediation expenses, including potentially the installation of equipment and changes in the type of materials we use in manufacturing, that could adversely affect our financial
position and results of operations.

We will likely need additional capital in the future, and such capital may not be available on acceptable terms
or at all, which would have a material adverse effect on our business, financial condition and results of operations.

We will
likely require more capital in the future from equity or debt financings to fund operating expenses, such as research and development costs, finance investments in equipment and infrastructure, acquire complementary businesses and technologies, and
respond to competitive pressures and potential strategic opportunities. If we raise additional funds through further issuances of equity or other securities convertible into equity, our existing stockholders could suffer significant dilution, and
any new shares we issue could have rights, preferences or privileges senior to those of the holders of our common stock, including the shares of common stock sold in this offering. In addition, additional capital may not be available when needed or,
if available, may not be available on favorable terms. In addition, our indebtedness limits our ability to incur additional indebtedness under certain circumstances. If we are unable to obtain capital on favorable terms, or if we are unable to
obtain capital at all, we may have to reduce our operations or forego opportunities, and this may have a material adverse effect on our business, financial condition and results of operations.

Our business depends on international customers, suppliers and operations in Asia, and as a result we are subject to regulatory, operational, financial and
political risks, which could adversely affect our financial results.

We rely on, and expect to continue to rely on, suppliers,
subcontractors and operations located primarily in Asia. As a result, we face risks inherent in international operations, such as unexpected changes in regulatory requirements, tariffs and other market barriers, political, social and economic
instability, adverse tax consequences, war, civil disturbances and acts of terrorism, difficulties in accounts receivable collection, extended payment terms and differing labor standards, enforcement of contractual obligations and protection of
intellectual property. These risks may lead to increased costs or decreased revenue growth, or both. Although we do not derive any revenue from, nor sell any products in, North Korea, any future increase in tensions between South Korea and North
Korea that may occur, such as an outbreak of military hostilities, would adversely affect our business, financial condition and results of operations.

You may not be able to bring an action or enforce any judgment obtained in United States courts, or bring an action in any other jurisdiction, against us or
our subsidiaries or our directors, officers or independent auditors that are organized or residing in jurisdictions other than the United States.

Most of our subsidiaries are organized or incorporated outside of the United States and some of our directors and executive officers as well as our independent auditors are organized or reside outside of the United
States. Most of our and our subsidiaries assets are located outside of the United States and in particular, in Korea. Accordingly, any judgment obtained in the United States against us or our subsidiaries may not be collectible in the United
States. As a result, it may not be possible for you to effect service of process within the United States upon these persons or to enforce against them or us court judgments obtained in the United States that are predicated upon the civil liability
provisions of the federal securities laws of the United States or of the securities laws of any state of the United States. In particular, there is doubt as to the enforceability in Korea or any other jurisdictions outside the United States, either
in original actions or in actions for enforcement of judgments of United States courts, of civil liabilities predicated on the federal securities laws of the United States or the securities laws of any state of the United States.

Our level of indebtedness is substantial, and we may not be able to generate sufficient cash to service all of
our indebtedness and may be forced to take other actions to satisfy our obligations under our indebtedness, which may not be successful. A decline in the ratings of our existing or future indebtedness may make the terms of any new indebtedness we
choose to incur more costly.

As of December 31, 2010, our total indebtedness was $246.9 million. Our substantial debt could
have important consequences, including:

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increasing our vulnerability to general economic and industry conditions;

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requiring a substantial portion of our cash flow from operations to be dedicated to the payment of principal and interest on our indebtedness, therefore reducing
our ability to use our cash flow to fund our operations, capital expenditures and future business opportunities;

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limiting our ability to obtain additional financing for working capital, capital expenditures, debt service requirements, acquisitions and general corporate or
other purposes; and

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limiting our ability to adjust to changing market conditions and placing us at a competitive disadvantage compared to our competitors who have less debt.

Our ability to make scheduled payments on or to refinance our debt obligations depends on our financial condition and
operating performance, which is subject to prevailing economic and competitive conditions and to certain financial, business and other factors beyond our control. We cannot assure you that we will generate a level of cash flows from operating
activities sufficient to permit us to pay the principal, premium, if any, and interest on our indebtedness.

The credit ratings assigned
to our debt reflect each rating agencys opinion of our ability to make payments on the debt obligations when such payments are due. The current rating of our senior notes is B2 by Moodys and B+ by Standard and Poors, both of which
are below investment grade. A rating may be subject to revision or withdrawal at any time by the assigning rating agency. We may experience downgrades in our debt ratings in the future. Any lowering of our debt ratings would adversely impact our
ability to raise additional debt financing and increase the cost of any such financing that is obtained. In the event any ratings downgrades are significant, we may choose not to incur new debt or refinance existing debt if we are unable to incur or
refinance such debt at favorable interest rates or on favorable terms.

If our cash flows and capital resources are insufficient to fund
our debt service obligations or if we are unable to refinance existing indebtedness on favorable terms, we may be forced to reduce or delay capital expenditures, sell assets, seek additional capital or restructure or refinance our indebtedness.
These alternative measures may not be successful and may not permit us to meet our scheduled debt service obligations. In the absence of such operating results and resources, we could face substantial liquidity problems and might be required to
dispose of material assets or operations to meet our debt service and other obligations. The indentures governing our notes restrict our ability to dispose of assets and use the proceeds from the disposition. We may not be able to consummate those
dispositions or be able to obtain the proceeds which we could realize from them and these proceeds may not be adequate to meet any debt service obligations then due.

We are a holding company and will depend on the business of our subsidiaries to satisfy our obligations under our outstanding notes and other obligations.

Each of MagnaChip Semiconductor Corporation, MagnaChip Semiconductor S.A. and MagnaChip Semiconductor B.V. is a holding company with no independent
operations of its own. Our subsidiaries, including our principal manufacturing subsidiary, MagnaChip Korea, own all of our operating businesses. Our subsidiaries will conduct substantially all of the operations necessary to

fund payments on our outstanding notes, other debt and any other obligations. Our ability to make payments on the notes and our other obligations will depend on our subsidiaries cash flow
and their payment of funds to us. Our subsidiaries ability to make payments to us will depend on:

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their earnings;

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covenants contained in our debt agreements (including the indenture governing the notes) and the debt agreements of our subsidiaries;

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covenants contained in other agreements to which we or our subsidiaries are or may become subject;

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business and tax considerations; and

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applicable law, including any restrictions under Korean law that may be imposed on MagnaChip Korea that would restrict its ability to make payments on
intercompany loans from MagnaChip Semiconductor B.V.

We cannot assure you that the operating results of our
subsidiaries at any given time will be sufficient to make distributions or other payments to us or that any distributions or payments will be adequate to pay principal and interest, and any other payments, on our outstanding notes, other debt or any
other obligations when due, and the failure to make such payments could have a material adverse effect on our business, financial condition and results of operations.

Restrictions on MagnaChip Koreas ability to make payments on its intercompany loans from MagnaChip Semiconductor B.V., or on its ability to pay dividends in excess of statutory limitations, could hinder
our ability to make payments on our 10.500% senior notes due 2018.

We anticipate that payments under our 10.500% senior notes
due 2018 will be funded in part by MagnaChip Koreas repayment of its existing loans from MagnaChip Semiconductor B.V., with MagnaChip Semiconductor B.V. using such repayments in turn to repay the loans owed to MagnaChip Semiconductor S.A.
Under the Korean Foreign Exchange Transaction Act, the minister of the Ministry of Strategy and Finance is authorized to temporarily suspend payments in foreign currencies in the event of natural calamities, wars, conflicts of arms, grave and sudden
changes in domestic or foreign economic conditions, or other similar situations. In addition, under the Korean Commercial Code, a Korean company is permitted to make a dividend payment in accordance with the provisions in its articles of
incorporation out of retained earnings (as determined in accordance with the Korean Commercial Code and the generally accepted accounting principles in Korea), but no more than twice a year. If MagnaChip Korea is prevented from making payments under
its intercompany loans due to restrictions on payments of foreign currency or if it has an insufficient amount of retained earnings under the Korean Commercial Code to make dividend payments to MagnaChip Semiconductor B.V., we may not have
sufficient funds to make payments on the notes.

The indenture governing our outstanding senior notes contains,
and our future debt agreements will likely contain, numerous covenants imposing financial and operating restrictions on our business. These restrictions may affect our ability to operate our business, may limit our ability to take advantage of
potential business opportunities as they arise and may adversely affect the conduct of our current business, including by restricting our ability to finance future operations and capital needs and by limiting our ability to engage in other business
activities. These covenants will place restrictions on our ability and the ability of our operating subsidiaries to, among other things:

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pay dividends, redeem shares or make other distributions with respect to equity interests, make payments with respect to subordinated indebtedness or other
restricted payments;

consolidate, merge or dispose of all or substantially all of our assets, taken as a whole;

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sell or otherwise transfer or dispose of assets, including equity interests of our subsidiaries;

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enter into sale-leaseback transactions;

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enter into transactions with our affiliates; and

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designate our subsidiaries as unrestricted subsidiaries.

In addition, our future debt agreements will likely contain financial ratios and other financial conditions tests. Our ability to meet those financial ratios and tests could be affected by events beyond our
control, and we cannot assure you that we will meet those ratios and tests. A breach of any of these covenants could result in a default under such debt agreements. Upon the occurrence of an event of default under such debt agreements, our lenders
under such agreements could elect to declare all amounts outstanding under such debt agreements to be immediately due and payable and terminate all commitments to extend further credit.

Investor confidence may be adversely impacted if we fail to achieve and maintain effective internal control over financial reporting or disclosure controls and procedures or are unable to comply with
Section 404 of the Sarbanes-Oxley Act of 2002, and as a result, our stock price could decline.

We will be subject to rules
adopted by the Securities Exchange Commission, or SEC, pursuant to Section 404 of the Sarbanes-Oxley Act of 2002, or Sarbanes-Oxley Act, which requires us to include in our Annual Report on Form 10-K our managements report on, and
assessment of the effectiveness of, our internal control over financial reporting. We may also in the future become subject to the requirement that our independent registered public accounting firm attest to and report on the effectiveness of our
internal control over financial reporting.

In connection with audits of our consolidated financial statements for the ten-month period
ended October 25, 2009 and two-month period ended December 31, 2009, our independent registered public accounting firm reported two control deficiencies which represented a material weakness in our internal control over financial
reporting. The two control deficiencies which represented a material weakness were that we did not have a sufficient number of financial personnel with the requisite financial accounting experience and that our controls over non-routine transactions
were not effective to ensure that accounting considerations are identified and appropriately recorded. Based upon the remediation actions taken by us, our management has concluded that these two control deficiencies no longer exist as of December
31, 2010.

We cannot assure you that we will not discover additional material weaknesses in our internal control over financial
reporting in the future. If we fail to maintain the adequacy of our internal control over financial reporting, there is a risk that we will have additional material weaknesses in the future. Moreover, effective internal controls are necessary for us
to produce reliable financial reports and are important to helping prevent financial fraud. Any of these possible outcomes could result in an adverse reaction in the financial marketplace due to a loss of investor confidence in the reliability of
our consolidated financial statements and could result in investigations or sanctions by the SEC, the New York Stock Exchange, or NYSE, or other regulatory authorities or in stockholder litigation. Any of these factors ultimately could harm our
business and could negatively impact the market price of our securities. Ineffective control over financial reporting could also cause investors to lose confidence in our reported financial information, which could adversely affect the trading price
of our common stock.

We are also required to periodically assess and report on the adequacy of our disclosure controls and
procedures. Our disclosure controls and procedures are designed to provide reasonable assurance that information required to be disclosed by the issuer in the reports that it files or submits under the Security and Exchange Act of 1934, as amended,
is recorded, processed, summarized and reported, within the time periods specified in the SECs rules and forms, and that such information is accumulated and communicated to our management, with the participation of it Chief Executive Officer
and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure. However, our management, including our principal executive officer and principal financial officer, does not expect that our disclosure controls
and procedures will prevent all error and all fraud. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Further, the design of a
control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of controls can provide
absolute assurance that all control issues and instances of fraud, if any, have been detected. See Managements Discussion and Analysis of Financial Condition and Results of OperationsControls and Procedures.

We may need to incur impairment and other restructuring charges, which could materially affect our results of operations and financial conditions.

During industry downturns and for other reasons, we may need to record impairment or restructuring charges. From April 4,
2005 through December 31, 2010, we recognized aggregate restructuring and impairment charges of $65.9 million, which consisted of $60.2 million of impairment charges and $5.6 million of restructuring charges. In the future, we may
need to record additional impairment charges or to further restructure our business or incur additional restructuring charges, any of which could have a material adverse effect on our results of operations or financial condition.

We are subject to litigation risks, which may be costly to defend and the outcome of which is uncertain.

All industries, including the semiconductor industry, are subject to legal claims, with and without merit, that may be particularly costly and which
may divert the attention of our management and our resources in general. We are involved in a variety of legal matters, most of which we consider routine matters that arise in the normal course of business. These routine matters typically fall into
broad categories such as those involving customers, employment and labor and intellectual property. Even if the final outcome of these legal claims does not have a material adverse effect on our financial position, results of operations or cash
flows, defense and settlement costs can be substantial. Due to the inherent uncertainty of the litigation process, the resolution of any particular legal claim or proceeding could have a material effect on our business, financial condition, results
of operations or cash flows.

Risks Related to Our Common Stock

The price of our depositary shares and common stock may be volatile and you may lose all or a part of your investment.

Prior to this offering, there has not been a public market for our depositary shares or common stock. Even though we anticipate that our shares will be quoted on the New York Stock Exchange, an active trading
market for our depositary shares or common stock may not develop following this offering. You may not be able to sell your shares quickly or at the current market price if trading in our depositary shares or common stock is not active. The initial
public offering price for the shares will be determined by negotiations between the underwriters, the selling stockholders and us, and may not be indicative of prices that will prevail in the trading market.

In addition, the trading price of our depositary shares and common stock might be subject to wide
fluctuations. Factors, some of which are beyond our control, that could affect the trading price of our depositary shares or common stock may include:



actual or anticipated variations in our results of operations from quarter to quarter or year to year;



announcements by us or our competitors of significant agreements, technological innovations or strategic alliances;



changes in recommendations or estimates by any securities analysts who follow our securities;



addition or loss of significant customers;



recruitment or departure of key personnel;



changes in economic performance or market valuations of competing companies in our industry;



price and volume fluctuations in the overall stock market;



market conditions in our industry, end markets and the economy as a whole;

the expiration of contractual lock-up agreements with our executive officers, directors and greater than 1% stockholders.

In the past, following periods of volatility in the market price of a public companys securities, securities class action litigation often
has been instituted against the public company. Regardless of its outcome, this type of litigation could result in substantial costs to us and a likely diversion of our managements attention. You may not receive a positive return on your
investment when you sell your shares, and you could lose some or the entire amount of your investment.

Control by principal stockholders could
adversely affect our other stockholders.

Based upon the MagnaChip Semiconductor LLC units outstanding as of December 31, 2010,
our executive officers, directors and greater than 5% unitholders collectively beneficially owned approximately 85.8% of the common units of MagnaChip Semiconductor LLC, excluding units issuable upon exercise of outstanding options and warrants, and
86.1% of the common units, including units issuable upon exercise of outstanding options and warrants that are exercisable within sixty days of December 31, 2010. After giving effect to the corporate conversion and the sale of shares in this
offering, our executive officers, directors and greater than 5% stockholders, collectively, would have owned approximately 64.3% of our common stock as of December 31, 2010, assuming no exercise of the underwriters option to purchase
additional shares from us or the selling stockholders. On the same adjusted basis, and assuming exercise of the underwriters option to purchase an additional 142,500 shares from us and 1,282,500 shares from the selling stockholders, our
executive officers, directors and greater than 5% stockholders, collectively, would have owned approximately 61.1% of our common stock as of December 31, 2010. In the event that we sell less than 9,500,000 shares in this offering, the ownership
percentage of our executive officers, directors and greater than 5% stockholders will increase. In addition, Avenue has three designees serving as members of our seven-member board of directors. Therefore, Avenue will continue to have significant
influence over our affairs for the foreseeable future, including influence over the election of directors and significant corporate transactions, such as a merger or other sale of our company or our assets.

Our concentration of ownership will limit the ability of other stockholders to influence corporate
matters and, as a result, we may take actions that our non-sponsor stockholders do not view as beneficial. For example, our concentration of ownership could have the effect of delaying or preventing a change in control or otherwise discouraging a
potential acquirer from attempting to obtain control of us, which in turn could cause the market price of our common stock to decline or prevent our stockholders from realizing a premium over the market price for their shares of our common stock.

Under our certificate of incorporation, our non-employee directors and non-employee holders of five percent or more of our outstanding
common stock do not have a duty to refrain from engaging in a corporate opportunity in the same or similar activities or lines of business as those engaged in by us, our subsidiaries and other related parties. Also, we have renounced any interest or
expectancy in such business opportunities even if the opportunity is one that we might reasonably have pursued or had the ability or desire to pursue if granted an opportunity to do so.

We are controlled by Avenue, whose interests in our business may conflict with yours, and we are a controlled company within the meaning of NYSE rules.

Upon completion of this offering, Avenue will beneficially own approximately 20,789,539 shares, or 52.1%, of our outstanding common stock assuming
no exercise of the underwriters option to purchase additional shares and approximately 49.4% assuming full exercise of the underwriters option to purchase additional shares. Accordingly, Avenue will be able to control most matters
requiring stockholder approval, including the election of directors and approval of significant corporate transactions, including mergers and sales of substantially all of our assets. Because of the equity ownership of Avenue, we will be considered
a controlled company for purposes of the NYSE listing requirements. As such, we will be exempt from the NYSE corporate governance requirements that our board of directors meet the standards of independence established by those corporate
governance requirements and exempt from the requirements that we have separate Compensation and Nominating and Corporate Governance Committees made up entirely of directors who meet such independence standards. Although we do not intend to rely upon
the exemption available for controlled companies, we may choose to utilize the exemption at any time that we remain a controlled company. The NYSE independence standards are intended to ensure that directors who meet the independence standards are
free of any conflicting interest with management that could influence their actions as directors. It is possible that the interests of Avenue may in some circumstances conflict with our interests and the interests of our other stockholders. In the
event that Avenues ownership falls below 50.1% of our outstanding common stock, including as a result of the exercise in full of the underwriters option to purchase additional shares or as a result of an increase in the number of shares
sold in this offering, we will no longer be a controlled company or be entitled to the benefits of the exemptions described above.

The future
sale of significant amounts of our common stock may negatively affect our stock price, even if our business is doing well.

Sales
of substantial amounts of shares of our common stock in the public market, or the prospect of such sales, could adversely affect the market price of our common stock. After giving effect to the corporate conversion and the sale of shares in this
offering, we would have had 39,351,985 shares of common stock outstanding as of December 31, 2010, based on the number of MagnaChip Semiconductor LLC units outstanding as of that date. All of the shares outstanding prior to this offering are subject
to lock-up agreements under which the holders of such shares have agreed not to sell or otherwise dispose of any of their shares for a period of 180 days after the date of this prospectus without the prior written consent of Barclays Capital
Inc. and Deutsche Bank Securities Inc. (or other agreements which impose similar restrictions), other than any shares such holders may sell to the underwriters in this offering after the date of this prospectus pursuant to the underwriters
option to purchase up to 142,500 additional shares of our common stock from us and 1,282,500 shares from the selling stockholders; provided, that these agreements do not restrict the ability of the stockholders party to the registration rights
agreement to cause a resale registration statement to be filed in

accordance with the demand registration rights described under Description of Capital StockRegistration Rights. After the 180-day period, all currently outstanding shares will
be eligible for sale from time to time in the future under Rule 144, Rule 701 or Section 4(1) of the Securities Act with respect to shares covered by Section 1145 of the U.S. Bankruptcy Code.

Barclays Capital Inc. and Deutsche Bank Securities Inc. can together waive the restrictions of the lock-up agreements at an earlier time without
prior notice or announcement and allow stockholders to sell their shares. As restrictions on resale end, the market price of our common stock could drop significantly if the holders of the restricted shares sell such restricted shares or are
perceived by the market as intending to sell such restricted shares.

Provisions in our charter documents and Delaware Law may make it difficult
for a third party to acquire us and could depress the price of our common stock.

Provisions in our certificate of incorporation
and bylaws may have the effect of delaying or preventing a change of control or changes in our management. Among other things, our certificate of incorporation and bylaws:



authorize our board of directors to issue, without stockholder approval, preferred stock with such terms as the board of directors may determine;



divide our board of directors into three classes so that only approximately one-third of the total number of directors is elected each year;



permit directors to be removed only for cause by a majority vote;



prohibit action by written consent of our stockholders;



prohibit any person other than our board of directors, the chairman of our board of directors, our Chief Executive Officer or holders of at least 25% of the
voting power of all then outstanding shares of capital stock of the corporation entitled to vote generally in the election of directors to call a special meeting of our stockholders; and

In addition, following this offering, we will be subject to the provisions of Section 203 of the Delaware General Corporation Law, or DGCL,
regulating corporate takeovers and which has an anti-takeover effect with respect to transactions not approved in advance by our board of directors, including discouraging takeover attempts that might result in a premium over the market price for
shares of our common stock. In general, those provisions prohibit a Delaware corporation from engaging in any business combination with any interested stockholder for a period of three years following the date that the stockholder became an
interested stockholder, unless:



the transaction is approved by the board of directors before the date the interested stockholder attained that status;



upon consummation of the transaction which resulted in the stockholder becoming an interested stockholder, the interested stockholder owned at least 85% of the
voting stock of the corporation outstanding at the time the transaction commenced; or



on or after such date, the business combination is approved by the board of directors and authorized at a meeting of stockholders, and not by written consent, by
at least two-thirds of the outstanding voting stock that is not owned by the interested stockholder.

In general,
Section 203 defines a business combination to include the following:



any merger or consolidation involving the corporation and the interested stockholder;



any sale, transfer, pledge or other disposition of 10% or more of the assets of the corporation involving the interested stockholder;



subject to certain exceptions, any transaction that results in the issuance or transfer by the corporation of any stock of the corporation to the interested
stockholder;

any transaction involving the corporation that has the effect of increasing the proportionate share of the stock of any class or series of the corporation
beneficially owned by the interested stockholder; or



the receipt by the interested stockholder of the benefit of any loans, advances, guarantees, pledges or other financial benefits provided by or through the
corporation.

In general, Section 203 defines an interested stockholder as any entity or person beneficially
owning 15% or more of the outstanding voting stock of the corporation and any entity or person affiliated with or controlling or controlled by any such entity or person.

A Delaware corporation may opt out of this provision by express provision in its original certificate of incorporation or by amendment to its certificate of incorporation or bylaws approved by its stockholders.
However, we have not opted out of, and do not currently intend to opt out of, this provision.

We may apply the proceeds of this offering to uses
that do not improve our operating results or increase the value of your investment.

We intend to use the net proceeds from this
offering to pay a portion of certain employee incentive payments payable upon the closing of this offering and to pay certain expenses of this offering. However, we will have broad discretion in how we use the net proceeds of this offering. These
proceeds could be applied in ways that do not improve our operating results or increase the value of your investment. Until the net proceeds are used, they may be placed in investments that do not produce income or that lose value.

You will incur immediate and substantial dilution and may experience further dilution immediately upon the sale of our common stock in this offering.

The initial public offering price of our common stock is substantially higher than $3.32, the net tangible book value per
share of our common stock as of December 31, 2010, calculated on a pro forma basis for the sale of shares in this offering. Therefore, if you purchase our common stock in this offering, you will incur an immediate dilution of $12.68 in net tangible
book value per share from the price you paid, based on the assumed initial offering price of $16.00 per share. The exercise of outstanding options and warrants to purchase shares of our common stock at a weighted average exercise price of $6.33 and
$15.76 per share, respectively (based upon a conversion ratio of eight-for-one between the common units of MagnaChip Semiconductor LLC and our shares of common stock), will result in further dilution.

The U.S. federal income tax consequences of the cancellation of the depositary shares are not specifically addressed by applicable law.

Applicable law does not specifically address, under circumstances comparable to ours, the U.S. federal income tax consequences of cancellation
of the depositary shares, and the issuance of a credit for the number of shares of common stock equal to the number of cancelled depositary shares. Further, we have not, and will not, obtain a ruling from the Internal Revenue Service, or IRS, with
respect to the U.S. federal income tax consequences of the cancellation of the depositary shares and issuance of a credit for common stock. If the IRS were to conclude that a holder of our depositary shares did not own the underlying shares,
the cancellation of the depositary shares might be a taxable transaction to the holder, causing the holder to recognize gain or loss in an amount equal to the difference between the fair market value of the underlying common stock at the time of
cancellation of the depositary shares and the holders tax basis in the depositary shares.

We will incur increased costs as a result of being a publicly listed company, and these additional costs could
harm our business and results of operations.

The Sarbanes-Oxley Act, as well as rules promulgated by the SEC and the NYSE,
require us to adopt corporate governance practices applicable to U.S. public companies. These rules and regulations will increase our legal and financial compliance costs and make certain compliance and reporting activities more time-consuming.
We also expect it to be more difficult and more expensive for us to obtain and maintain director and officer liability insurance, which may cause us to accept reduced policy limits and reduced coverage or to incur substantially higher costs to
obtain the same or similar coverage. As a result, it may be more difficult for us to attract and retain qualified persons to serve on our board of directors or as executive officers. We cannot predict or estimate the amount of additional costs we
may incur, but these additional costs and demands on management time and attention may harm our business and results of operations.

We do not
intend to pay dividends for the foreseeable future after this offering, and therefore, investors should rely on sales of their common stock as the only way to realize any future gains on their investments.

We do not intend to pay any cash dividends in the foreseeable future after this offering. The payment of cash dividends on common stock is
restricted under the terms of the indenture for our senior notes. We anticipate that we will retain all of our future earnings after this offering for use in the development of our business and for general corporate purposes. Any determination to
pay dividends in the future will be at the discretion of our board of directors. Accordingly, investors must rely on sales of their common stock after price appreciation, which may never occur, as the only way to realize any future gains on their
investments.

In this prospectus, we rely on and refer to information regarding the semiconductor market from iSuppli Corporation, or iSuppli, and Gartner, Inc.,
or Gartner. Market data attributed to iSuppli is from Display Driver ICs Q3 2010 Market Tracker and Power Management Q3 2010 Market Tracker and market data attributed to Gartner is from Semiconductor Forecast Worldwide:
Forecast Database, 08 Dec 2010. Although we believe that this information is reliable, we have not independently verified it. We do not have any obligation to announce or otherwise make publicly available updates or revisions to forecasts
contained in these documents. In addition, in many cases, we have made statements in this prospectus regarding our industry and our position in the industry based on our experience in the industry and our own investigation of market conditions.

SPECIAL CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS

Information concerning us and this offering is subject to risks and uncertainties. Forward-looking statements give our current expectations and
projections relating to our financial condition, results of operations, plans, objectives, future performance and business. These statements can be identified by the fact that they do not relate strictly to historical or current facts. These
statements may include words such as anticipate, estimate, expect, project, intend, plan, believe and other words and terms of similar meaning in connection with any
discussion of the timing or nature of future operating or financial performance or other events. All statements other than statements of historical facts included in this prospectus that address activities, events or developments that we expect,
believe or anticipate will or may occur in the future are forward-looking statements.

These forward-looking statements are largely
based on our expectations and beliefs concerning future events, which reflect estimates and assumptions made by our management. These estimates and assumptions reflect our best judgment based on currently known market conditions and other factors
relating to our operations and business environment, all of which are difficult to predict and many of which are beyond our control. Although we believe our estimates and assumptions to be reasonable, they are inherently uncertain and involve a
number of risks and uncertainties that are beyond our control. In addition, managements assumptions about future events may prove to be inaccurate. Management cautions all readers that the forward-looking statements contained in this
prospectus are not guarantees of future performance, and we cannot assure any reader that those statements will be realized or the forward-looking events and circumstances will occur. Actual results may differ materially from those anticipated or
implied in the forward-looking statements due to the factors listed in the Risk Factors, Managements Discussion and Analysis of Financial Condition and Results of Operations and Business sections and
elsewhere in this prospectus.

All forward-looking statements speak only as of the date of this prospectus. We do not intend to publicly
update or revise any forward-looking statements as a result of new information or future events or otherwise, except as required by law. These cautionary statements qualify all forward-looking statements attributable to us or persons acting on our
behalf.

We estimate that the net proceeds from the sale of the common stock that we are offering will be approximately $3.3 million, after deducting the
underwriting discounts and commissions and the estimated offering expenses payable by us (assuming an initial public offering price of $16.00 per share, the midpoint of the range set forth on the cover page of this prospectus). We will not receive
any of the proceeds from the sale of our common stock by the selling stockholders.

We intend to use the net proceeds to us from this
offering to partially fund approximately $12 million in discretionary incentive payments to all of our employees, excluding our executive officers. The remainder of the funds necessary to make our employee incentive payments, if necessary, will be
made from cash on hand, and if we raise more or fewer proceeds from this offering than anticipated, the amount required to fund the employee incentive payments from cash on hand will be reduced or increased by a commensurate amount.

Pending such use, we intend to invest the net proceeds of this offering in short-term, investment-grade, interest-bearing securities.

DIVIDEND POLICY

We do not intend to pay any cash dividends on our common stock in the foreseeable future after this offering. We anticipate that we will retain all of our future earnings after this offering for use in the
development of our business and for general corporate purposes. Any determination to pay dividends in the future will be at the discretion of our board of directors. The payment of cash dividends on our common stock is restricted under the terms of
the indenture governing our senior notes.

On April 19, 2010, we made a $130.7 million cash distribution to our unitholders
using proceeds from the sale of our senior notes. The per common unit distribution was $0.4254.

CORPORATE
CONVERSION

In connection with this offering, our board of directors and the holders of a majority of our outstanding common
units elected to convert MagnaChip Semiconductor LLC from a Delaware limited liability company to a Delaware corporation and to change our name from MagnaChip Semiconductor LLC to MagnaChip Semiconductor Corporation. The conversion was completed on
March 10, 2011. In order to consummate such a conversion, a certificate of conversion was filed with the Secretary of State of the State of Delaware prior to the effectiveness of the registration statement of which this prospectus is a part. In
connection with the corporate conversion, outstanding common units of MagnaChip Semiconductor LLC were automatically converted into shares of common stock of MagnaChip Semiconductor Corporation, outstanding options to purchase common units of
MagnaChip Semiconductor LLC were automatically converted into options to purchase shares of common stock of MagnaChip Semiconductor Corporation and outstanding warrants to purchase common units of MagnaChip Semiconductor LLC were automatically
converted into warrants to purchase shares of common stock of MagnaChip Semiconductor Corporation, all at a ratio of eight-for-one.

the actual capitalization of MagnaChip Semiconductor Corporation as of December 31, 2010; and



our actual capitalization as of December 31, 2010 as adjusted to give effect to the sale by us of 950,000 shares of our common stock in this offering at an
initial public offering price of $16.00 per share (the midpoint of the range set forth on the front cover of this prospectus), after the deduction of the underwriting discounts and commissions of $1.1 million and the estimated offering expenses of
$10.8 million payable by us, and the application of the related proceeds as described under Use of Proceeds.

This table should be read together with Use of Proceeds, Selected Historical Consolidated Financial and Operating Data, Managements Discussion and Analysis of Financial Condition
and Results of Operations and our consolidated financial statements and related notes included elsewhere in this prospectus.

A $1.00 decrease or increase in the assumed initial public offering price would result in approximately a $0.9 million decrease or increase in each of additional paid-in capital,
total stockholders equity and total capitalization, assuming the total number of shares offered by us remains the same and after deducting the estimated underwriting discounts and commissions and estimated offering expenses payable by us.

(2)

Represents principal amount of notes net of original issue discount of $3.1 million.

Our net tangible book value as of December 31, 2010 was approximately $127.5 million, or $3.32 per share of our common stock. Net tangible
book value represents our total tangible assets reduced by our total liabilities as of December 31, 2010. Net tangible book value per share represents net tangible book value divided by the number of shares of common stock outstanding as of
December 31, 2010. Dilution in net tangible book value per share represents the difference between the amount per share that you pay in this offering and the net tangible book value per share immediately after this offering.

After giving effect to the receipt of the estimated net proceeds from the sale by us of 950,000 shares, our net tangible book value as of December
31, 2010 would have been $130.8 million, or $3.32 per share of common stock. This represents an immediate decrease in net tangible book value per share after giving effect to this offering of $12.68 to you. The following table illustrates the
dilution.

Assumed initial public offering price per share

$

16.00

Net tangible book value per share as of December 31, 2010

$

3.32

Increase in net tangible book value per share attributable to new investors

0.00

Net tangible book value per share after giving effect to this offering

3.32

Dilution per share to new investors

$

12.68

A $1.00 increase or decrease in the assumed initial public offering price of $16.00 per share would increase or
decrease the net tangible book value per share after giving effect to this offering by $0.02 per share and would increase or decrease the dilution in net tangible book value per share to investors in this offering by $0.98 per share. This
calculation assumes that the number of shares offered by us, as set forth on the cover page of this prospectus, remains the same and reflects the deduction of the underwriting discounts and commissions and estimated expenses of this offering.

If the underwriters exercise their option to purchase additional shares of our common stock from us in full in this offering, the net
tangible book value per share after the offering would be $3.37 per share, the increase in net tangible book value per share to existing stockholders would be $0.05 per share and the dilution to new investors purchasing shares in this offering would
be $12.63 per share.

The following table sets forth, as of December 31, 2010, giving effect to this offering, the differences between
the amounts paid or to be paid by the groups set forth in the table with respect to the aggregate number of shares of our common stock acquired or to be acquired by each group.

SharesPurchased

TotalConsideration

AveragePricePer Share

Number

% (2)

Amount

%

(In millions, except share and % data)

Existing stockholders

29,851,985

75.9

%

$

43.1

22.1

%

$

1.44

New investors(1)

9,500,000

24.1

152.0

77.9

16.00

Total

39,351,985

100.0

%

$

195.1

100.0

%

$

4.96

(1)

Before deduction of the underwriting discounts and commissions and estimated offering expenses payable by us.

(2)

Sales by the selling stockholders in this offering will reduce the number of shares held by existing stockholders to 29,851,985, or 75.9% of the total number of shares of our
common stock to be outstanding after the offering, and will increase the number of shares held by new investors to 9,500,000, or 24.1% of the total number of shares of our common stock to be outstanding after the offering.

If the underwriters option to purchase additional shares from us and the selling stockholders
is exercised in full, the number of shares of common stock held by existing stockholders will be reduced to 28,569,485 shares, or 72.3% of the aggregate number of shares of common stock outstanding after this offering, and the number of shares of
common stock held by new investors will be increased to 10,925,000 shares, or 27.7% of the aggregate number of shares of common stock outstanding after this offering. The total consideration paid by our existing stockholders would be $41.3 million,
or 19.1%, and the total consideration paid by our new investors would be $174.8 million, or 80.9% and the average price per share paid by our existing stockholders and new investors would be $1.44 and $16.00, respectively.

To the extent that any outstanding options and warrants to purchase shares of our common stock are exercised, investors in this offering will
experience further dilution. The table below sets forth the matters described with respect to the table above and assumes the exercise of all options and warrants outstanding or exercisable as of December 31, 2010. Assuming such exercise, the total
number of shares purchased would be increased as a result of the additional shares underlying the options and warrants being issued. Therefore the percentage of shares purchased by the existing stockholders and new investors relative to all three
groups would be decreased. Similarly, as a result of the option and warrant exercises, the total consideration to be received by us would be increased because of the additional cash received by us from option and warrant exercises. Such increase in
total consideration would have the effect of decreasing the percentage of total consideration paid by the existing stockholders and new investors relative to all three groups. The average price per share for the existing stockholders and new
investors would remain unchanged.

SharesPurchased

TotalConsideration

AveragePricePer Share

Number

% (3)

Amount

%

(In millions, except share and % data)

Existing stockholders

29,851,985

69.1

%

$

43.1

18.2

%

$

1.44

New investors(1)

9,500,000

22.0

152.0

64.1

16.00

Option and warrant holders(2)

3,832,777

8.9

41.9

17.7

10.94

Total

43,184,762

100.00

%

$

237.0

100.0

%

$

5.49

(1)

Before deduction of the underwriting discounts and commissions and estimated offering expenses payable by us.

(2)

Includes shares of common stock issuable upon exercise of options previously granted to our officers, directors and employees and warrants issued in connection with our
reorganization proceedings.

(3)

Sales by the selling stockholders in this offering will reduce the number of shares held by existing stockholders to 29,851,985, or 69.1% of the total number of shares of our
common stock to be outstanding after the offering, and will increase the number of shares held by new investors to 9,500,000, or 22.0% of the total number of shares of our common stock to be outstanding after the offering.

If the underwriters option to purchase additional shares from us and the selling stockholders is exercised in full, the number of shares
of common stock held by existing stockholders will be reduced to 28,569,485 shares, or 65.9% of the aggregate number of shares of common stock outstanding after this offering, and the number of shares of common stock held by new investors will be
increased to 10,925,000 shares, or 25.2% of the aggregate number of shares of common stock outstanding after this offering. The total consideration paid by our existing stockholders would be $41.3 million, or 16.0%, and the total consideration paid
by our new investors would be $174.8 million, or 67.8% and the average price per share paid by our existing stockholders and new investors would be $1.44 and $16.00, respectively.

The following tables set forth selected historical consolidated financial data of MagnaChip Semiconductor Corporation on or as
of the dates and for the periods indicated. The selected historical consolidated financial data presented below should be read together with Managements Discussion and Analysis of Financial Condition and Results of Operations and
our consolidated financial statements, including the notes to those consolidated financial statements, appearing elsewhere in this prospectus.

We have derived the selected consolidated financial data as of December 31, 2010 and 2009 and for the year ended December 31, 2010, the two-month period ended December 31, 2009, the ten-month period ended
October 25, 2009 and the year ended December 31, 2008 from the historical audited consolidated financial statements of MagnaChip Semiconductor Corporation included elsewhere in this prospectus. We have derived the selected consolidated
financial data as of December 31, 2008, 2007 and 2006 and for the years ended December 31, 2007 and 2006 from the historical audited consolidated financial statements of MagnaChip Semiconductor LLC not included in this prospectus. The
historical consolidated financial data for the year ended December 31, 2010 and the two-month period ended December 31, 2009 give retroactive effect to the corporate conversion. The historical results of MagnaChip Semiconductor Corporation for
any prior period are not necessarily indicative of the results to be expected in any future period.

In connection with our emergence
from reorganization proceedings, we implemented fresh-start accounting in accordance with ASC 852 governing reorganizations. We elected to adopt a convenience date of October 25, 2009 (a month end for our financial reporting purposes) for
application of fresh-start accounting. In accordance with the ASC 852 governing reorganizations, we recorded largely non-cash reorganization income and expense items directly associated with our reorganization proceedings including professional
fees, the revaluation of assets, the effects of our reorganization plan and fresh-start accounting and write-off of debt issuance costs. As a result of the application of fresh-start accounting, our financial statements prior to and including
October 25, 2009 represent the operations of our pre-reorganization predecessor company and are presented separately from the financial statements of our post-reorganization successor company. As a result of the application of fresh-start
accounting, the financial statements prior to and including October 25, 2009 are not fully comparable with the financial statements for periods after October 25, 2009.

As of October 25, 2009, the fresh-start adoption date, we adopted fresh-start accounting for our consolidated financial statements. Because of the emergence from
reorganization proceedings and adoption of fresh-start accounting, the historical financial information for periods after October 25, 2009 is not fully comparable to periods before October 25, 2009. See Managements Discussion
and Analysis of Financial Condition and Results of OperationsRecent Changes to Our Business.

(2)

Total indebtedness is calculated as long and short-term borrowings, including the current portion of long-term borrowings.

we anticipate that our investor and analyst presentations after we are public will include Adjusted EBITDA; and



we believe that Adjusted EBITDA provides investors with a more consistent measurement of period to period performance of our core operations, as well as a
comparison of our operating performance to that of other companies in our industry.

We use Adjusted EBITDA in a number of ways, including:



for planning purposes, including the preparation of our annual operating budget;



to evaluate the effectiveness of our enterprise level business strategies;



in communications with our board of directors concerning our consolidated financial performance; and



in certain of our compensation plans as a performance measure for determining incentive compensation payments.

We encourage you to evaluate each adjustment and the reasons we consider them appropriate. In evaluating Adjusted EBITDA, you should be aware that in the future we may incur
expenses similar to the adjustments in this presentation. Adjusted EBITDA is not a measure defined in accordance with GAAP and should not be construed as an alternative to income from continuing operations, cash flows from operating activities or
net income (loss), as determined in accordance with GAAP. A reconciliation of net income (loss) to Adjusted EBITDA is as follows:

Successor

Predecessor

Year EndedDecember
31,2010

Two-MonthPeriod
EndedDecember 31,2009

Ten-MonthPeriod EndedOctober
25,2009

Year EndedDecember 31,2008

(In millions)

Net income (loss)

$

74.1

$

(2.0

)

$

841.1

$

(417.3

)

Less: Income (loss) from discontinued operations, net of taxes



0.5

6.6

(91.5

)

Income (loss) from continuing operations

74.1

(2.5

)

834.5

(325.8

)

Adjustments:

Depreciation and amortization associated with continuing operations

58.4

11.2

37.7

63.8

Interest expense, net

22.9

1.3

31.2

76.1

Income tax expenses

8.4

1.9

7.3

11.6

Restructuring and impairment charges(a)

2.0



0.4

13.4

Other restructuring charges(b)





13.3

6.2

Abandoned IPO expenses(c)







3.7

Reorganization items, net(d)





(804.6

)



Inventory step-up(e)

0.9

17.2





Equity-based compensation expense(f)

5.2

2.2

0.2

0.5

Foreign currency loss (gain), net(g)

(14.7

)

(9.3

)

(43.4

)

210.4

Derivative valuation loss, net(h)

0.7







Adjusted EBITDA

$

157.9

$

22.1

$

76.6

$

59.8

(a)

This adjustment is comprised of all items included in the restructuring and impairment charges line item on our consolidated statements of operations, and eliminates the impact
of restructuring and impairment charges related to (i) for 2010, impairment charges of $2.0 million recorded, of which $1.6 million of impairment charges were recognized for abandoned in-process research and development projects and $0.4
million of impairment charges were recognized as a result of an annual impairment test of in-process research and development, accounted for as indefinite-lived intangible assets as part of the application of fresh-start accounting, (ii) for
2009, termination benefits and other related costs, for the ten-month period ended October 25, 2009 in connection with the closure of one of our research and development facilities in Japan, (iii) for 2008, goodwill impairment triggered by
the significant adverse change in the revenue of our mobile display solutions, or MDS reporting unit, and a reversal of a portion of the restructuring accrual related to the closure of our Gumi five-inch wafer fabrication facilities in 2007. We do
not believe these restructuring and impairment charges are indicative of our core ongoing operating performance because we do not anticipate similar facility closures and market driven events in our ongoing operations, although we cannot guarantee
that similar events will not occur in the future.

(b)

This adjustment relates to certain restructuring charges that are not included in the restructuring and impairment charges line item on our consolidated statements of operations.
These items are included in selling, general and administrative expenses in our consolidated statements of operations. These charges are comprised of the following: (i) for 2009, a charge of $13.3 million for restructuring-related
professional fees and related expenses, and (ii) for 2008, a charge of $6.2 million for restructuring-related professional fees and related expenses. We do not believe these other restructuring charges are indicative of our core ongoing
operating performance because these charges were related, in significant part, to actions we took in response to the impacts on our business resulting from the global economic recession that persisted through 2008 and 2009. We cannot guarantee that
similar charges will not be incurred in the future.

(c)

This adjustment eliminates a $3.7 million charge related to expenses incurred in connection with our abandoned initial public offering in 2008. We do not believe that these
charges are indicative of our core operating performance. We expect to incur similar costs in connection with this offering.

(d)

This adjustment eliminates the impact of largely non-cash reorganization income and expense items directly associated with our reorganization proceedings from
our ongoing operations including, among others, professional fees, the revaluation of assets, the effects of the Chapter 11 reorganization plan and fresh-start accounting principles and the write-off of debt issuance costs. Included in
reorganization items, net for the ten-month period ended October 25, 2009 was our predecessors gain recognized from the effects of our reorganization proceedings. The gain results from the difference between our predecessors
carrying value of remaining pre-petition liabilities subject to compromise and the amounts to be distributed pursuant to the reorganization proceedings. The gain from the effects of the reorganization proceedings and the application of fresh-start
accounting principles is comprised of the discharge of liabilities subject to

compromise, net of the issuance of new common units and new warrants and the accrual of amounts to be settled in cash. For details regarding this adjustment, see note 5 to the consolidated
financial statements of MagnaChip Semiconductor Corporation included elsewhere in this prospectus. We do not believe these items are indicative of our core ongoing operating performance because they were incurred as a result of our
Chapter 11 reorganization.

(e)

This adjustment eliminates the one-time impact on cost of sales associated with the write-up of our inventory in accordance with the principles of fresh-start accounting upon
consummation of the Chapter 11 reorganization.

(f)

This adjustment eliminates the impact of non-cash equity-based compensation expenses. Although we expect to incur non-cash equity-based compensation expenses in the future, we
believe that analysts and investors will find it helpful to review our operating performance without the effects of these non-cash expenses, as supplemental information.

(g)

This adjustment eliminates the impact of non-cash foreign currency translation associated with intercompany debt obligations and foreign currency denominated receivables and
payables, as well as the cash impact of foreign currency transaction gains or losses on collection of such receivables and payment of such payables. Although we expect to incur foreign currency translation gains or losses in the future, we believe
that analysts and investors will find it helpful to review our operating performance without the effects of these primarily non-cash gains or losses, as supplemental information.

(h)

This adjustment eliminates the impact of gain or loss recognized in income on derivatives, which represents hedge ineffectiveness or derivatives value changes excluded from the
risk being hedged. We enter into derivative transactions to mitigate foreign exchange risks. As our derivative transactions are limited to a certain portion of our expected cash flows denominated in USD, and we do not enter into derivative
transactions for trading or speculative purposes, we do not believe that these charges or gains are indicative of our core operating performance.

Adjusted EBITDA has limitations as an analytical tool, and you should not consider it in isolation, or as a substitute for analysis of our results as reported under GAAP. Some of
these limitations are:

Adjusted EBITDA does not reflect the interest expense, or the cash requirements necessary to service interest or principal payments, on our debt;



although depreciation and amortization are non-cash charges, the assets being depreciated and amortized will often have to be replaced in the future, and
Adjusted EBITDA does not reflect any cash requirements for such replacements;



Adjusted EBITDA does not consider the potentially dilutive impact of issuing equity-based compensation to our management team and employees;



Adjusted EBITDA does not reflect the costs of holding certain assets and liabilities in foreign currencies; and



other companies in our industry may calculate Adjusted EBITDA differently than we do, limiting its usefulness as a comparative measure.

Because of these limitations, Adjusted EBITDA should not be considered as a measure of discretionary cash available to us to invest in the growth of our business. We compensate
for these limitations by relying primarily on our GAAP results and using Adjusted EBITDA only supplementally.

(5)

We present Adjusted Net Income as a further supplemental measure of our performance. We prepare Adjusted Net Income by adjusting net income (loss) to eliminate the impact of a
number of non-cash expenses and other items that may be either one time or recurring that we do not consider to be indicative of our core ongoing operating performance. We believe that Adjusted Net Income is particularly useful because it reflects
the impact of our asset base and capital structure on our operating performance.

We present Adjusted Net Income for a number of reasons, including:



we use Adjusted Net Income in communications with our board of directors concerning our consolidated financial performance;



we believe that Adjusted Net Income is an enterprise level performance measure commonly reported and widely used by analysts and investors in our industry; and



we anticipate that our investor and analyst presentations after we are public will include Adjusted Net Income.

Adjusted Net Income is not a measure defined in accordance with GAAP and should not be construed as an alternative to income from continuing operations, cash flows from operating
activities or net income (loss), as determined in accordance with GAAP. We encourage you to evaluate each adjustment and the reasons we consider them appropriate. Other companies in our industry may calculate Adjusted Net Income differently than we
do, limiting its usefulness as a comparative measure. In addition, in evaluating Adjusted Net Income, you should be aware that in the future we may incur expenses similar to the adjustments in this presentation. We define Adjusted Net Income as net
income (loss) less income (loss) from discontinued operations, net of taxes, excluding (i) restructuring and impairment charges, (ii) other restructuring charges, (iii) abandoned IPO expenses, (iv) reorganization items, net,
(v) the increase in cost of sales resulting from the fresh-start accounting inventory step-up, (vi) equity-based compensation expense, (vii) amortization of intangibles associated with continuing operations, (viii) foreign
currency gain (loss) and (ix) derivative valuation gain (loss), net.

The following table summarizes the adjustments to net income (loss) that we make in order to calculate Adjusted Net Income for the periods indicated:

Successor

Predecessor

Year EndedDecember 31,2010

Two-MonthPeriod
EndedDecember 31,2009

Ten-MonthPeriod EndedOctober
25,2009

Year EndedDecember 31,2008

(In millions)

Net income (loss)

$

74.1

$

(2.0

)

$

841.1

$

(417.3

)

Less: Income (loss) from discontinued operations, net of taxes



0.5

6.6

(91.5

)

Income (loss) from continuing operations

74.1

(2.5

)

834.5

(325.8

)

Adjustments:

Restructuring and impairment charges(a)

2.0



0.4

13.4

Other restructuring charges(b)





13.3

6.2

Abandoned IPO expenses(c)







3.7

Reorganization items, net(d)





(804.6

)



Inventory step-up(e)

0.9

17.2





Equity-based compensation expense(f)

5.2

2.2

0.2

0.5

Amortization of intangibles associated with continuing operations(g)

21.0

5.6

8.8

20.0

Foreign currency loss (gain), net(h)

(14.7

)

(9.3

)

(43.4

)

210.4

Derivative valuation loss, net(i)

0.7







Adjusted Net Income (Loss)

$

89.2

$

13.3

$

9.3

$

(71.7

)

(a)

This adjustment is comprised of all items included in the restructuring and impairment charges line item on our consolidated statements of operations, and eliminates the impact
of restructuring and impairment charges related to (i) for 2010, impairment charges of $2.0 million recorded, of which $1.6 million of impairment charges were recognized for abandoned in-process research and development projects and $0.4
million of impairment charges were recognized as a result of an annual impairment test of in-process research and development, accounted for as indefinite-lived intangible assets as part of the application of fresh-start accounting, (ii) for
2009, termination benefits and other related costs, for the ten-month period ended October 25, 2009 in connection with the closure of one of our research and development facilities in Japan, (iii) for 2008, goodwill impairment triggered by
the significant adverse change in the revenue of our MDS reporting unit and a reversal of a portion of the restructuring accrual related to the closure of our Gumi five-inch wafer fabrication facilities in 2007. We do not believe these restructuring
and impairment charges are indicative of our core ongoing operating performance because we do not anticipate similar facility closures and market driven events in our ongoing operations, although we cannot guarantee that similar events will not
occur in the future.

(b)

This adjustment relates to certain restructuring charges that are not included in the restructuring and impairment charges line item on our consolidated statements of operations.
These items are included in selling, general and administrative expenses in our consolidated statements of operations. These charges are comprised of the following: (i) for 2009, a charge of $13.3 million for restructuring-related
professional fees and related expenses, and (ii) for 2008, a charge of $6.2 million for restructuring-related professional fees and related expenses. We do not believe these other restructuring charges are indicative of our core ongoing
operating performance because these charges were related, in significant part, to actions we took in response to the impacts on our business resulting from the global economic recession that persisted through 2008 and 2009. We cannot guarantee that
similar charges will not be incurred in the future.

(c)

This adjustment eliminates a $3.7 million charge in 2008 related to expenses incurred in connection with our abandoned initial public offering in 2008. We do not believe that
these charges are indicative of our core operating performance. We expect to incur similar costs in connection with this offering.

(d)

This adjustment eliminates the impact of largely non-cash reorganization income and expense items directly associated with our reorganization proceedings from our ongoing
operations including, among others, professional fees, the revaluation of assets, the effects of the Chapter 11 reorganization plan and fresh-start accounting principles and the write-off of debt issuance costs. Included in reorganization
items, net for the ten-month period ended October 25, 2009 was our predecessors gain recognized from the effects of our reorganization proceedings. The gain results from the difference between our predecessors carrying value of
remaining pre-petition liabilities subject to compromise and the amounts to be distributed pursuant to the reorganization proceedings. The gain from the effects of the reorganization proceedings and the application of fresh-start accounting
principles is comprised of the discharge of liabilities subject to compromise, net of the issuance of new common units and new warrants and the accrual of amounts to be settled in cash. For details regarding this adjustment, see note 5 to the
consolidated financial statements of MagnaChip Semiconductor Corporation included elsewhere in this prospectus. We do not believe these items are indicative of our core ongoing operating performance because they were incurred as a result of our
reorganization proceedings.

(e)

This adjustment eliminates the one-time impact on cost of sales associated with the write-up of our inventory in accordance with the principles of fresh-start accounting upon
consummation of the Chapter 11 reorganization.

(f)

This adjustment eliminates the impact of non-cash equity-based compensation expenses. Although we expect to incur non-cash equity-based compensation expenses in the future, we
believe that analysts and investors will find it helpful to review our operating performance without the effects of these non-cash expenses, as supplemental information.

This adjustment eliminates the non-cash impact of amortization expense for intangible assets created as a result of the purchase accounting treatment of the Original Acquisition
and other subsequent acquisitions, and from the application of fresh-start accounting in connection with the reorganization proceedings. We do not believe these non-cash amortization expenses for intangibles are indicative of our core ongoing
operating performance because the assets would not have been capitalized on our balance sheet but for the application of purchase accounting or fresh-start accounting, as applicable.

(h)

This adjustment eliminates the impact of non-cash foreign currency translation associated with intercompany debt obligations and foreign currency denominated receivables and
payables, as well as the cash impact of foreign currency transaction gains or losses on collection of such receivables and payment of such payables. Although we expect to incur foreign currency translation gains or losses in the future, we believe
that analysts and investors will find it helpful to review our operating performance without the effects of these primarily non-cash gains or losses, as supplemental information.

(i)

This adjustment eliminates the impact of gain or loss recognized in income on derivatives, which represents hedge ineffectiveness or derivatives value changes excluded from the
risk being hedged. We enter into derivative transactions to mitigate foreign exchange risks. As our derivative transactions are limited to a certain portion of our expected cash flows denominated in USD, and we do not enter into derivative
transactions for trading or speculative purposes, we do not believe that these charges or gains are indicative of our core operating performance.

Adjusted Net Income has limitations as an analytical tool, and you should not consider it in isolation, or as a substitute for analysis of our results as reported under GAAP.
Some of these limitations are:



Adjusted Net Income does not reflect our cash expenditures, or future requirements, for capital expenditures or contractual commitments;



Adjusted Net Income does not reflect changes in, or cash requirements for, our working capital needs;



Adjusted Net Income does not consider the potentially dilutive impact of issuing equity-based compensation to our management team and employees;



Adjusted Net Income does not reflect the costs of holding certain assets and liabilities in foreign currencies; and



other companies in our industry may calculate Adjusted Net Income differently than we do, limiting its usefulness as a comparative measure.

Because of these limitations, Adjusted Net Income should not be considered as a measure of discretionary cash available to us to invest in the growth of our business. We
compensate for these limitations by relying primarily on our GAAP results and using Adjusted Net Income only supplementally.

We have prepared the unaudited pro forma condensed consolidated financial information of MagnaChip for the year ended December 31, 2010 in
accordance with Article 11 of Regulation S-X.

The unaudited pro forma condensed consolidated statements of operations for the
year ended December 31, 2010 is derived from the historical consolidated financial statements of MagnaChip Semiconductor Corporation and gives pro forma effect to the following as if these events had occurred on January 1, 2010:



the reorganization proceedings and adoption of fresh-start reporting;



the corporate conversion; and



the issuance of $250 million senior notes by MagnaChip Semiconductor S.A. and MagnaChip Semiconductor Finance Company, our wholly-owned subsidiaries, and
the application of the net proceeds therefrom.

Basis of Presentation

The following information should be read in conjunction with Selected Historical Consolidated Financial and Operating Data,
Managements Discussion and Analysis of Financial Condition and Results of Operations, Risk Factors, Capitalization and the audited consolidated financial statements of MagnaChip Semiconductor Corporation and
the related notes included elsewhere in this prospectus. The unaudited pro forma consolidated financial information is not necessarily indicative of operating results that would have been achieved if the transactions identified above had occurred on
the dates indicated, nor does it purport to represent the results we will obtain in the future.

Management prepared the accompanying
unaudited pro forma condensed consolidated statement of operations for the year ended December 31, 2010 in accordance with Article 11 of Regulation S-X for inclusion in this prospectus.

The accounting policies used in the preparation of the unaudited pro forma consolidated financial statements are those disclosed in the audited
consolidated financial statements of MagnaChip Semiconductor Corporation for the year ended December 31, 2010.

The following
unaudited pro forma condensed consolidated financial information should be read in conjunction with Capitalization, Selected Historical Consolidated Financial and Operating Data, Managements Discussion and
Analysis of Financial Condition and Results of Operations and our consolidated financial statements, including the notes to those consolidated financial statements, included elsewhere in this prospectus.

The Reorganization Proceedings and Fresh-Start Reporting

On June 12, 2009 MagnaChip Semiconductor LLC, along with certain of its subsidiaries, including MagnaChip Semiconductor S.A., filed a voluntary petition for relief in the United States Bankruptcy Court for the
District of Delaware under Chapter 11 of the United States Bankruptcy Code. On November 9, 2009, our plan of reorganization became effective and we emerged from the reorganization proceedings.

In connection with our emergence from the reorganization proceedings, we implemented fresh-start accounting in accordance with ASC 852. We elected
to adopt a convenience date of October 25, 2009 (a month end for our financial reporting purposes) for application of fresh-start accounting. In

accordance with ASC 852, we recorded largely non-cash reorganization income and expense items directly associated with our reorganization proceedings including the revaluation of assets, the
effects of our reorganization plan and fresh-start accounting, the write-off of debt issuance costs and professional fees.

In
implementing fresh-start reporting, our asset values were remeasured and allocated in conformity with ASC guidance on business combinations. Fresh-start reporting requires that all liabilities, other than deferred taxes and severance benefits, be
stated at fair value. Deferred taxes are determined in conformity with guidance on income taxes.

The Corporate Conversion

On March 10, 2011, we converted from a Delaware limited liability company to a Delaware corporation and changed our name from MagnaChip
Semiconductor LLC to MagnaChip Semiconductor Corporation. The corporate conversion adjustments in the unaudited pro forma consolidated financial information for the year ended December 31, 2010 assume the consummation of the corporate
conversion was effective as of January 1, 2010.

Issuance of $250 Million Senior Notes and Applications of Net Proceeds

On April 9, 2010, MagnaChip Semiconductor S.A. and MagnaChip Semiconductor Finance Company, our wholly-owned subsidiaries, completed the sale
of $250 million in aggregate principal amount of 10.500% senior notes due 2018 at an offering price of 98.674%. Net proceeds from the notes offering were $238.4 million which represents $250 million of principal amount net of
$3.3 million of original issue discount and $8.3 million of debt issuance costs, including professional fees. Of the $238.4 million of net proceeds, $130.7 million was used to make a distribution to our unitholders and
$61.6 million was used to repay all outstanding borrowings under our term loan. The remaining proceeds of $46.1 million were retained to fund working capital and for general corporate purposes.

Historical

Pro Forma

Year EndedDecember 312010

Adjustments

Year EndedDecember 31,2010

(In millions, except per common share data)

Condensed Pro Forma Statement of Operations:

Net sales

$

770.4

$



$

770.4

Cost of sales

526.8

(0.9

)(1)

526.0

Gross profit

243.6

244.4

Selling, general and administrative expenses

66.6



66.6

Research and development expenses

83.5



83.5

Restructuring and impairment charges

2.0



2.0

Operating income from continuing operations

91.4

92.3

Interest expense, net

(22.9

)

(5.0

)(2)

(27.9

)

Foreign currency gain, net

14.7



14.7

Others

(0.7

)



(0.7

)

(8.9

)

(13.9

)

Income from continuing operations before income taxes

82.5

78.4

Income tax expenses

8.4

3.6

(3)

12.0

Income from continuing operations

$

74.1

$

66.4

Per common share data:

Earnings from continuing operations per common share

Basic

$

1.96

$

1.75

Diluted

$

1.89

$

1.70

Weighted average number of common shares

Basic

37.836

37.836

Diluted

39.144

39.144

Notes to Unaudited Pro Forma Consolidated Financial
Information for the Year Ended December 31, 2010

(1)

To eliminate the one-time impact on cost of sales associated with the step up of our inventory of $17.9 million resulting from implementation of fresh-start accounting, of which
$0.9 million was charged to cost of sales in the historical statement of operations for the year ended December 31, 2010, applying the first in, first out method, or FIFO. This adjustment is considered a material non-recurring charge which is
directly attributable to the reorganization proceedings and fresh-start accounting and as such is being eliminated from the historical statement of operations in presenting the unaudited pro forma statement of operations.

To eliminate interest expense of $2.1 million which was incurred on our $61.6 million aggregate principal amount new term loan and $0.2 million write-off of debt
issuance costs in connection with repayment of our new term loan which was recognized in the year ended December 31, 2010. In addition, the pro forma adjustment assumes the 10.500% senior notes in the aggregate principal amount of
$250.0 million, issued on April 9, 2010, were outstanding as of January 1, 2010. The resulting additional interest expense from our 10.500% senior notes would have been $7.3 million using the effective interest rate method.

(3)

We believe that the pro forma adjustments related to the issuance of $250 million aggregate principal amount of senior notes and the application of the net proceeds should not
have an impact on income tax expense for the year ended December 31, 2010. The pro forma adjustment resulting in an increase in interest expense, net, is primarily related to our foreign subsidiary that has sufficient amounts of operating loss carry
forwards with full valuation allowance for deferred tax assets and, accordingly, such pro forma adjustment will have no income tax effect.

Assuming that the corporate conversion of MagnaChip Semiconductor LLC, a partnership entity, into MagnaChip Semiconductor Corporation was effective as of January 1, 2010, MagnaChip Semiconductor Corporation would
have been a taxable entity as of that date. The resulting income tax expenses for the year ended December 31, 2010 would be $3.6 million, mainly attributable to long outstanding intercompany balances.

The following discussion and analysis should be read in conjunction with the Selected Historical Consolidated Financial and Operating Data and our consolidated financial statements and the related
notes included elsewhere in this prospectus. This discussion and analysis contains, in addition to historical information, forward-looking statements that include risks and uncertainties. Our actual results may differ materially from those
anticipated in these forward-looking statements as a result of certain factors, including those set forth under the heading Risk Factors and elsewhere in this prospectus.

Overview

We are a Korea-based designer and manufacturer of analog and mixed-signal
semiconductor products for high-volume consumer applications. We believe we have one of the broadest and deepest analog and mixed-signal semiconductor technology platforms in the industry, supported by our 30-year operating history, large portfolio
of approximately 2,730 novel registered patents and 760 pending novel patent applications and extensive engineering and manufacturing process expertise. Our business is comprised of three key segments: Display Solutions, Power Solutions and
Semiconductor Manufacturing Services. Our Display Solutions products include display drivers that cover a wide range of flat panel displays and multimedia devices. Our Power Solutions products include discrete and integrated circuit solutions for
power management in high-volume consumer applications. Our Semiconductor Manufacturing Services segment provides specialty analog and mixed-signal foundry services for fabless semiconductor companies that serve the consumer, computing and wireless
end markets.

Our wide variety of analog and mixed-signal semiconductor products and manufacturing services combined with our deep
technology platform allows us to address multiple high-growth end markets and to rapidly develop and introduce new products and services in response to market demands. Our substantial manufacturing operations in Korea and design centers in Korea and
Japan place us at the core of the global consumer electronics supply chain. We believe this enables us to quickly and efficiently respond to our customers needs and allows us to better service and capture additional demand from existing and
new customers.

To maintain and increase our profitability, we must accurately forecast trends in demand for consumer electronics
products that incorporate semiconductor products we produce. We must understand our customers needs as well as the likely end market trends and demand in the markets they serve. We must balance the likely manufacturing utilization demand of
our product businesses and foundry business to optimize our facilities utilization. We must also invest in relevant research and development activities and manufacturing capacity and purchase necessary materials on a timely basis to meet our
customers demand while maintaining our target margins and cash flow.

The semiconductor markets in which we participate are highly
competitive. The prices of our products tend to decrease regularly over their useful lives, and such price decreases can be significant as new generations of products are introduced by us or our competitors. We strive to offset the impact of
declining selling prices for existing products through cost reductions and the introduction of new products that command selling prices above the average selling price of our existing products. In addition, we seek to manage our inventories and
manufacturing capacity so as to mitigate the risk of losses from product obsolescence.

Demand for our products and services is driven
primarily by overall demand for consumer electronics products and can be adversely affected by periods of weak consumer spending or by

market share losses by our customers. To mitigate the impact of market volatility on our business, we seek to address market segments and geographies with higher growth rates than the overall
consumer electronics industry. For example, in recent years, we have experienced increasing demand from OEMs and consumers in China and Taiwan relative to overall demand for our products and services. We expect to derive a meaningful portion of our
growth from growing demand in such markets. We also expect that new competitors will emerge in these markets that may place increased pressure on the pricing for our products and services, but we believe that we will be able to successfully compete
based upon our higher quality products and services and that the impact from the increased competition will be more than offset by increased demand arising from such markets. Further, we believe we are well-positioned competitively as a result of
our long operating history, existing manufacturing capacity and our Korea-based operations.

Within our Display Solutions and Power
Solutions segments, net sales are driven by design wins in which we or another company is selected by an electronics OEM or other potential customer to supply its demand for a particular product. A customer will often have more than one supplier
designed in to multi-source components for a particular product line. Once designed in, we often specify the pricing of a particular product for a set period of time, with periodic discussions and renegotiations of pricing with our customers. In any
given period, our net sales depend heavily upon the end-market demand for the goods in which our products are used, the inventory levels maintained by our customers and in some cases, allocation of demand for components for a particular product
among selected qualified suppliers.

Within the Semiconductor Manufacturing Services business, net sales are driven by customers
decisions on which manufacturing services provider to use for a particular product. Most of our semiconductor manufacturing services customers are fabless and depend upon service providers like us to manufacture their products. A customer will often
have more than one supplier of manufacturing services; however, they tend to allocate a majority of manufacturing volume to one of their suppliers. We strive to be the primary supplier of manufacturing services to our customers. Once selected as a
primary supplier, we often specify the pricing of a particular service on a per wafer basis for a set period of time, with periodic discussions and renegotiations of pricing with our customers. In any given period, our net sales depend heavily upon
the end-market demand for the goods in which the products we manufacture for customers are used, the inventory levels maintained by our customers and in some cases, allocation of demand for manufacturing services among selected qualified suppliers.

In contrast to fabless semiconductor companies, our internal manufacturing capacity provides us with greater control over manufacturing
costs and the ability to implement process and production improvements which can favorably impact gross profit margins. Our internal manufacturing capacity also allows for better control over delivery schedules, improved consistency over product
quality and reliability and improved ability to protect intellectual property from misappropriation. However, having internal manufacturing capacity exposes us to the risk of under-utilization of manufacturing capacity which results in lower gross
profit margins, particularly during downturns in the semiconductor industry.

Our products and services require investments in capital
equipment. Analog and mixed-signal manufacturing facilities and processes are typically distinguished by the design and process implementation expertise rather than the use of the most advanced equipment. These processes also tend to migrate more
slowly to smaller geometries due to technological barriers and increased costs. For example, some of our products use high-voltage technology that requires larger geometries and that may not migrate to smaller geometries for several years, if at
all. Additionally, the performance of many of our products is not necessarily dependent on geometry. As a result, our manufacturing base and strategy does not require substantial investment in leading edge process equipment, allowing us to utilize
our facilities and equipment over an extended period of time with moderate required capital investments. Generally, incremental capacity expansions in our segment of the market result in more

moderate industry capacity expansion as compared to leading edge processes. As a result, this market, and we, specifically, are less likely to experience significant industry overcapacity, which
can cause product prices to plunge dramatically. In general, we seek to invest in manufacturing capacity that can be used for multiple high-value applications over an extended period of time. We believe this capital investment strategy enables us to
optimize our capital investments and facilitates deeper and more diversified product and service offerings.

Our success going forward
will depend upon our ability to adapt to future challenges such as the emergence of new competitors for our products and services or the consolidation of current competitors. Additionally, we must innovate to remain ahead of, or at least rapidly
adapt to, technological breakthroughs that may lead to a significant change in the technology necessary to deliver our products and services. We believe that our established relationships and close collaboration with leading customers enhance our
visibility into new product opportunities, market and technology trends and improve our ability to meet these challenges successfully. In our Semiconductor Manufacturing Services business, we strive to maintain competitiveness and our position as a
primary manufacturing services provider to our customers by offering high value added, unique processes, high flexibility and excellent service.

Controls and Procedures

In
connection with the audits of our consolidated financial statements for the ten-month period ended October 25, 2009 and two-month period ended December 31, 2009, our independent registered public accounting firm reported two control
deficiencies which represented a material weakness in our internal control over financial reporting. The two control deficiencies were that we did not have a sufficient number of financial personnel with requisite financial accounting experience and
that our internal controls over non-routine transactions were not effective to ensure that accounting considerations are identified and appropriately recorded. We identified and took steps to remediate this material weakness. Based on assessments of
the remediation actions taken, our management has concluded that these two control deficiencies which represented a material weakness no longer exist as of December 31, 2010. See Managements Discussion and Analysis of Financial Condition
and Results of OperationsControls and Procedures for managements remediation initiatives.

Recent Changes to Our Business

Beginning in the second half of 2008, we began to take steps to refocus our business strategy, enhance our operating efficiency
and improve our cash flow and profitability. We restructured our continuing operations by reducing our cost structure, increasing our focus on our core, profitable technologies, products and customers, and implemented various initiatives to lower
our manufacturing costs and improve our gross margins. In connection with these initiatives, we closed our Imaging Solutions business segment, which had been a source of substantial ongoing operating losses amounting to $91.5 million and
$51.7 million in 2008 and 2007, respectively, and which required substantial ongoing capital investment. Our employee headcount has declined from 3,648 as of the end of July 2008 to 3,156 at the end of 2009. As a result of these actions, we
were able to reduce our costs and improve our margins. Although our goal is to continue to focus on lower costs and improved margins on an ongoing basis, we expect that the financial benefits derived from our ongoing efforts will be incremental and
any such benefits may be offset by other negative factors affecting our operations.

On June 12, 2009, we filed a voluntary
petition for relief under Chapter 11 of the United States Bankruptcy Code in order to address the growing demands on our cash flow resulting from our long-term indebtedness. Our plan of reorganization went effective and we emerged from the
reorganization proceeding on November 9, 2009. As a result of the plan of reorganization, our indebtedness was reduced from $845.0 million immediately prior to the effectiveness of our plan of reorganization to $61.8 million as of
December 31, 2009.

During the first half of 2009, we instituted company-wide voluntary salary reductions, which resulted
in one-time savings for our continuing operations during 2009 and which in turn contributed to the decrease in salaries and related expenses in 2009 relative to 2008. In June 2009, we returned to our employees one-third of the amount by which their
salaries had been reduced. We reinstated salaries to prior levels in July 2009.

In connection with our emergence from reorganization
proceedings, we implemented fresh-start accounting in accordance with ASC 852 governing reorganizations. We elected to adopt a convenience date of October 25, 2009 (a month end for our financial reporting purposes) for application of
fresh-start accounting. In accordance with ASC 852 governing reorganizations, we recorded largely non-cash reorganization income and expense items directly associated with our reorganization proceedings including professional fees, the
revaluation of assets, the effects of our reorganization plan and fresh-start accounting, and write-off of debt issuance costs.

In
implementing fresh-start accounting, we re-measured our asset values and stated all liabilities, other than deferred taxes and severance benefits, at fair value. Our reorganization value was determined based on consideration of numerous factors and
various valuation methodologies, including discounted cash flows, believed by management and our financial advisors to be representative of our business and industry. Information regarding the determination of the reorganization value and
application of fresh-start accounting is included in note 3 to the consolidated financial statements of MagnaChip Semiconductor Corporation included elsewhere in this prospectus. In addition, under fresh-start accounting, accumulated
deficit and accumulated other comprehensive income were eliminated.

Under fresh-start accounting, our inventory, net, and intangible
assets, net, increased by $17.9 million and $28.3 million, respectively, and property, plant and equipment decreased by $13.9 million, in each case to reflect the estimated fair value as of our emergence from our reorganization
proceedings. As a result, our cost of sales for the two-month period ended December 31, 2009 included $17.2 million of additional costs from the inventory step-up. This resulted in our gross margin for the two-month period ended
December 31, 2009 being significantly lower than for the ten-month period ended October 25, 2009 and prior periods. The increase in intangible assets results in higher amortization expenses following our emergence from our reorganization
proceedings which are included in cost of sales, selling general and administrative expenses and research and development expenses. The decrease in property, plant and equipment results in lower depreciation expenses, which are included in cost of
sales, selling general and administrative expenses and research and development expenses following our emergence from our reorganization proceedings.

As a result of the application of fresh-start accounting, our consolidated financial statements prior to and including October 25, 2009 represent the operations of our pre-reorganization predecessor company
and are presented separately from the consolidated financial statements of our post-reorganization successor company. For the purposes of our discussion and analysis of our results of operations, we often refer to results of operations for 2009 on a
combined basis, including both the period before (predecessor company) and after (successor company) effectiveness of the plan of reorganization. We believe this comparison provides useful information as the principal impact of the plan of
reorganization was on our debt and capital structure and not on our core operations; and many of the steps taken to improve our core operations had commenced prior to the commencement of our reorganization proceedings.

On April 9, 2010, we completed the sale of $250 million in aggregate principal amount of 10.500% senior notes due 2018. Of the
$238.4 million of net proceeds, $130.7 million was used to make a distribution to our unitholders and $61.6 million was used to repay all outstanding borrowings

under our term loan. The remaining proceeds of $46.1 million were retained to fund working capital and for general corporate purposes. As a result of the higher level of indebtedness from our
senior notes offering, our interest expense will increase above that which was reported for the year ended December 31, 2010 to approximately $27.9 million per year.

Business Segments

We report in three separate business segments because we derive our
revenues from three principal business lines: Display Solutions, Power Solutions, and Semiconductor Manufacturing Services. We have identified these segments based on how we allocate resources and assess our performance.



Display Solutions: Our Display Solutions products include source and gate drivers and timing controllers that cover a wide
range of flat panel displays used in LCD televisions and LED televisions and displays, mobile PCs and mobile communications and entertainment devices. Our display solutions support the industrys most advanced display technologies, such as LTPS
and AMOLED, as well as high-volume display technologies such as TFT. Our Display Solutions business represented 39.7%, 50.5% and 50.5% of our net sales for the fiscal years ended December 31, 2010, 2009 (on a combined basis) and 2008,
respectively.



Power Solutions: Our Power Solutions segment produces power management semiconductor products including discrete and
integrated circuit solutions for power management in high-volume consumer applications. These products include MOSFETs, LED drivers, DC-DC converters, analog switches and linear regulators, such as low-dropout regulators, or LDOs. Our power
solutions products are designed for applications such as mobile phones, LCD televisions, and desktop computers, and allow electronics manufacturers to achieve specific design goals of high efficiency and low standby power consumption. Going forward,
we expect to continue to expand our power management product portfolio. Our Power Solutions business represented 7.4%, 2.2% and 0.9% of our net sales for the fiscal years ended December 31, 2010, 2009 (on a combined basis) and 2008,
respectively.



Semiconductor Manufacturing Services: Our Semiconductor Manufacturing Services segment provides specialty analog and
mixed-signal foundry services to fabless semiconductor companies that serve the consumer, computing and wireless end markets. We manufacture wafers based on our customers product designs. We do not market these products directly to end
customers but rather supply manufactured wafers and products to our customers to market to their end customers. We offer approximately 240 process flows to our manufacturing services customers. We also often partner with key customers to jointly
develop or customize specialized processes that enable our customers to improve their products and allow us to develop unique manufacturing expertise. Our manufacturing services are targeted at customers who require differentiated, specialty analog
and mixed-signal process technologies such as high voltage CMOS, embedded memory and power. These customers typically serve high-growth and high-volume applications in the consumer, computing and wireless end markets. Our Semiconductor Manufacturing
Services business represented 52.6%, 46.7% and 47.7% of our net sales for the fiscal years ended December 31, 2010, 2009 (on a combined basis) and 2008, respectively.

Additional Business Metrics Evaluated by Management

Adjusted EBITDA and Adjusted Net Income

We use the terms Adjusted EBITDA and Adjusted Net Income throughout this prospectus. Adjusted EBITDA, as we define it, is a
non-GAAP measure. We define Adjusted EBITDA as net income (loss) less income (loss) from discontinued operations, net of taxes, adjusted to exclude

We present Adjusted EBITDA as a
supplemental measure of our performance because:



Adjusted EBITDA eliminates the impact of a number of items that may be either one time or recurring that we do not consider to be indicative of our core ongoing
operating performance;



we believe that Adjusted EBITDA is an enterprise level performance measure commonly reported and widely used by analysts and investors in our industry;



we anticipate that our investor and analyst presentations after we are public will include Adjusted EBITDA; and



we believe that Adjusted EBITDA provides investors with a more consistent measurement of period to period performance of our core operations, as well as a
comparison of our operating performance to companies in our industry.

We use Adjusted EBITDA in a number of ways,
including:



for planning purposes, including the preparation of our annual operating budget;



to evaluate the effectiveness of our enterprise level business strategies;



in communications with our board of directors concerning our consolidated financial performance; and



in certain of our compensation plans as a performance measure for determining incentive compensation payments.

We present Adjusted Net Income for a number of reasons, including:



we use Adjusted Net Income in communications with our board of directors concerning our consolidated financial performance;



we believe that Adjusted Net Income is an enterprise level performance measure commonly reported and widely used by analysts and investors in our industry; and



we anticipate that our investor and analyst presentations after we are public will include Adjusted Net Income.

In evaluating Adjusted EBITDA and Adjusted Net Income, you should be aware that in the future we may incur expenses similar to the adjustments in
our presentation of Adjusted EBITDA and Adjusted Net Income. Our presentation of Adjusted EBITDA and Adjusted Net Income should not be construed as an inference that our future results will be unaffected by unusual or non-recurring items. Adjusted
EBITDA and Adjusted Net Income are not measures defined in accordance with GAAP and should not be construed as an alternative to operating income, cash flows from operating activities or

On a pro forma basis, our Adjusted EBITDA
and Adjusted Net Income for the year ended December 31, 2010 were $157.9 million and $80.6 million, respectively. Our Adjusted EBITDA and Adjusted Net Income for the combined twelve-month period ended December 31, 2009 were
$98.7 million and $22.6 million, respectively. Our Adjusted EBITDA and Adjusted Net Loss for the year ended December 31, 2008 were $59.8 million and $71.7 million, respectively. This improvement resulted from our
restructuring efforts and improvements in market conditions.

Factors Affecting Our Results of Operations

Net Sales. We derive a majority of our sales (net of sales returns and allowances) from three reportable
segments: Display Solutions, Power Solutions and Semiconductor Manufacturing Services. Our product inventory is primarily located in Korea and is available for drop shipment globally. Outside of Korea, we maintain limited product inventory, and our
sales representatives generally relay orders to our factories in Korea for fulfillment. We have strategically located our sales and technical support offices near concentrations of major customers. Our sales offices are located in Hong Kong, Japan,
Korea, Taiwan, China, the United Kingdom and the United States. Our network of authorized agents and distributors consists of agents in the United States and Europe and distributors and agents in the Asia Pacific region. Our net sales from All other
consist principally of rental income and, to a limited extent in 2008, semiconductor processing services for one customer where we completed a limited number of process steps, rather than the entire production process, which we refer to as unit
processing.

We recognize revenue when risk and reward of ownership passes to the customer either upon shipment, upon product delivery
at the customers location or upon customer acceptance, depending on the terms of the arrangement. For the year ended December 31, 2010 and the combined twelve-month period ended December 31, 2009, we sold products to over 500 and 185
customers, respectively, and our net sales to our ten largest customers represented 63% and 69% of our net sales for the year ended December 31, 2010 and the combined twelve-month period ended December 31, 2009, respectively. The increase in
number of customers is due to the continuing growth of our Power Solutions business. We have a combined production capacity of over 136,000 eight-inch equivalent semiconductor wafers per month. We believe our large-scale, cost-effective fabrication
facilities enable us to rapidly adjust our production levels to meet shifts in demand by our end customers.

Gross
Profit. Our overall gross profit generally fluctuates as a result of changes in overall sales volumes and in the average selling prices of our products and services. Other factors that influence our gross profit
include changes in product mix, the introduction of new products and services and subsequent generations of existing products and services, shifts in the utilization of our manufacturing facilities and the yields achieved by our manufacturing
operations, changes in material, labor and other manufacturing costs and variation in depreciation expense. Gross profit varies by our operating segments.

Average Selling Prices. Average selling prices for our products tend to be highest at the time of introduction of new products which utilize the latest technology and tend to
decrease over time as such products mature in the market and are replaced by next generation products. We strive to offset the impact of declining selling prices for existing products through our product development activities and by introducing new
products that command selling prices above the average selling price of our existing products. In addition, we seek to manage our inventories and manufacturing capacity so as to preclude losses from product and productive capacity obsolescence.

Material Costs. Our cost of sales consists of costs of raw
materials, such as silicon wafers, chemicals, gases and tape, packaging supplies, equipment maintenance and depreciation expenses. We use processes that require specialized raw materials, such as silicon wafers, that are generally available from a
limited number of suppliers. If demand increases or supplies decrease, the costs of our raw materials could significantly increase.

Labor Costs. A significant portion of our employees are located in Korea. Under Korean labor laws, most
employees and certain executive officers with one or more years of service are entitled to severance benefits upon the termination of their employment based on their length of service and rate of pay. As of December 31, 2010, approximately 98% of
our employees were eligible for severance benefits. We have in the past implemented temporary reductions in salaries to manage through downturns in the industry. We expect to and have reversed such temporary reductions when business conditions
improve.

Depreciation Expense. We periodically evaluate the carrying values of long-lived assets,
including property, plant and equipment and intangible assets, as well as the related depreciation periods. At December 31, 2010, we depreciated our property, plant and equipment using the straight-line method over the estimated useful lives of our
assets. Depreciation rates vary from 30-40 years on buildings to five to ten years for certain equipment and assets. Our evaluation of carrying values is based on various analyses including cash flow and profitability projections. If our
projections indicate that future undiscounted cash flows are not sufficient to recover the carrying values of the related long-lived assets, the carrying value of the assets is impaired and will be reduced, with the reduction charged to expense so
that the carrying value is equal to fair value.

Selling Expenses. We sell our products worldwide
through a direct sales force as well as a network of sales agents and representatives to OEMs, including major branded customers and contract manufacturers, and indirectly through distributors. Selling expenses consist primarily of the personnel
costs for the members of our direct sales force, a network of sales representatives and other costs of distribution. Personnel costs include base salary, benefits and incentive compensation. As incentive compensation is tied to various net sales
goals, it will increase or decrease with net sales.

General and Administrative Expenses. General
and administrative expenses consist of the costs of various corporate operations, including finance, legal, human resources and other administrative functions. These expenses primarily consist of payroll-related expenses, consulting and other
professional fees and office facility-related expenses. Historically, our selling, general and administrative expenses have remained relatively constant as a percentage of net sales, and we expect this trend to continue in the future.

Research and Development. The rapid technological change and product obsolescence that characterize our
industry require us to make continuous investments in research and development. Product development time frames vary but, in general, we incur research and development costs one to two years before generating sales from the associated new products.
These expenses include personnel costs for members of our engineering workforce, cost of photomasks, silicon wafers and other non-recurring engineering charges related to product design. Additionally, we develop base-line process technology through
experimentation and through the design and use of characterization wafers that help achieve commercially feasible yields for new products. The majority of research and development expenses are for process development that serves as a common
technology platform for all of our product segments. Consequently, we do not allocate these expenses to individual segments. Although our research and development expenses declined significantly from 2008 to 2009, the expenses increased in the year
ended December 31, 2010 and we expect the expenses to increase in future periods and to remain a relatively constant percentage of our net sales as we continue to increase our investments in research and development to develop additional products
and expand our business.

Restructuring and Impairment Charges. We evaluate the
recoverability of certain long-lived assets and in-process research and development assets on a periodic basis or whenever events or changes in circumstances indicate that the carrying value may not be recoverable. In our efforts to improve our
overall profitability in future periods, we have closed or otherwise impaired, and may in the future close or impair, facilities that are underutilized and that are no longer aligned with our long-term business goals. For example, in 2008 we
discontinued our Imaging Solutions business segment.

Interest Expense, Net. Our interest expense
was incurred under the Predecessor Companys senior secured credit facility, the Predecessor Companys second priority senior secured notes and senior subordinated notes and the Successor Companys new term loan under the Successor
Company. Our new term loan bore interest at six-month LIBOR plus 12%, and was minimally offset by interest income on cash balances. In April 2010, we repaid our new term loan with a portion of the proceeds from our sale of $250 million in
aggregate principal amount of 10.500% senior notes due 2018. As a result of our reorganization, we expect that our interest expense will decrease in amount and as a percentage of net sales relative to historical periods. However, as a result of our
senior notes offering, our interest expense will increase above that which was reported for the year ended December 31, 2010 to approximately $27.9 million per year.

Impact of Foreign Currency Exchange Rates on Reported Results of Operations. Historically, a portion of our revenues and
greater than the majority of our operating expenses and costs of sales have been denominated in non-U.S. currencies, principally the Korean won, and we expect that this will remain true in the future. Because we report our results of operations
in U.S. dollars, changes in the exchange rate between the Korean won and the U.S. dollar could materially impact our reported results of operations and distort period to period comparisons. In particular, because of the difference in the
amount of our consolidated revenues and expenses that are in U.S. dollars relative to Korean won, depreciation in the U.S. dollar relative to the Korean won could result in a material increase in reported costs relative to revenues, and
therefore could cause our profit margins and operating income (loss) from continuing operations to appear to decline materially, particularly relative to prior periods. The converse is true if the U.S. dollar were to appreciate relative to the
Korean won. As a result of such foreign currency fluctuations, it could be more difficult to detect underlying trends in our business and results of operations. In addition, to the extent that fluctuations in currency exchange rates cause our
results of operations to differ from our expectations or the expectations of our investors, the trading price of our stock could be adversely affected.

For periods ended on or prior to October 25, 2009, we converted our non-U.S. revenues and
expenses into U.S. dollars based on cumulative average exchange rates over the periods presented. Beginning on October 25, 2009, we convert our non-U.S. revenues and expenses into U.S. dollars based on monthly average exchange
rates. The following table provides the cumulative average exchange rates that we used to convert Korean won into U.S. dollars for each of the periods ended on our prior to October 25, 2009, as well as the monthly average exchange rates
used for the two-month period ended December 31, 2009 and for the year ended December 31, 2010:

Period

Rate

Year ended December 31, 2007

929:1

Year ended December 31, 2008

1,099:1

Ten-month period ended October 25, 2009

1,302:1

Two-month period ended December 31, 2009

November 2009

1,172:1

December 2009

1,165:1

Year ended December 31, 2010

January 2010

1,139:1

February 2010

1,157:1

March 2010

1,138:1

April 2010

1,117:1

May 2010

1,163:1

June 2010

1,212:1

July 2010

1,207:1

August 2010

1,180:1

September 2010

1,167:1

October 2010

1,123:1

November 2010

1,126:1

December 2010

1,148:1

As a result of the depreciation of the
Korean won against the U.S. dollar from 2007 to 2008 and from 2008 to 2009, foreign currency fluctuations generally had a materially beneficial impact on our reported profit margins and operating income (loss) from continuing operations for
such periods. In contrast, as a result of the appreciation of the Korean won against the U.S. dollar from the year ended December 31, 2009 to the year ended December 31, 2010, foreign currency fluctuations had a net unfavorable impact on our
reported profit margins and operating income (loss) from continuing operations for the year ended December 31, 2010 compared to the prior period. In order to provide more detailed information regarding the impact of foreign currency fluctuations on
our results of operations, in our discussion of period to period comparisons under the heading Results of Operations, we have included information regarding the impact of the year-to-year change in the Korean won/U.S. dollar
exchange rate. The information, which is described below as the impact of the depreciation or appreciation of the Korean won against the U.S. dollar, measures the impact in the change in applicable monthly or cumulative average exchange rate
for the most recent period discussed as compared to the applicable monthly or cumulative average exchange rate during the prior period. For net sales that were originally denominated in Korean won, we have compared the applicable monthly or
cumulative average exchange rate in effect for the prior period against the applicable monthly or cumulative average exchange rate for the period in which the sale took place on a transaction-by-transaction basis. For cost of sales and other
expenses, we have compared the applicable monthly or cumulative average exchange rate during the prior period to the applicable monthly or cumulative average exchange rate during the most recent period discussed and applied that to the amount of our
aggregate cost of sales and other expenses for the period that were originally denominated in Korean won. A substantial portion of the net sales recorded at our Korean subsidiary are in U.S. dollars and are converted into Korean won for
reporting purposes at the subsidiary level.

Although this approach does not reflect the fluctuations of the currency exchange rates for every transaction on a day-to-day basis, we believe that it provides a useful indication of the
magnitude of the exchange rate impact for the periods presented.

From time to time, we may engage in exchange rate hedging activities
in an effort to mitigate the impact of exchange rate fluctuations. For example, in January 2010 and May 2010 our Korean subsidiary entered into foreign currency option and forward contracts in order to mitigate a portion of the impact of
U.S. dollar-Korean won exchange rate fluctuations on our operating results. The January 2010 option and forward contracts require us to sell specified notional amounts in U.S. dollars and provide us the option to sell specified notional
amounts in U.S. dollars during each month of 2010 commencing February 2010 to our counterparty, in each case, in exchange for Korean won at specified fixed exchange rates. The May 2010 option and forward contracts require us to sell specified
notional amounts in U.S. dollars and provide us the option to sell specified notional amounts in U.S. dollars during the months of January 2011 through June 2011 to our counterparty, in each case, in exchange for Korean won at specified
fixed exchange rates. In August 2010 our Korean subsidiary additionally entered into zero cost collar contracts for the same purpose with the above hedge contracts. The August 2010 zero cost collar contracts require us to sell specified notional
amounts in U.S. dollars and provide us the option to sell specified notional amounts in U.S. dollars during the months of July 2011 through December 2011 to our counterparty, in each case, in exchange for Korean won at specified fixed exchange
rates. In January 2011, our Korean subsidiary additionally entered into zero cost collar contracts for the same purpose with the above hedge contracts. The January 2011 zero cost collar contracts require us to sell specified notional amounts in U.S.
dollars and provide us the option to sell specified notional amounts in U.S. dollars during the months of January 2012 through June 2012 to our counterparty, in each case, in exchange for Korean won at specified fixed exchange rates. Obligations
under these foreign currency option, forward and zero cost collar contracts must be cash collateralized if our exposure exceeds certain specified thresholds. These option, forward and zero cost collar contracts may be terminated by the counterparty
in a number of circumstances, including if our long-term debt rating falls below B-/B3 or if our total qualified and unrestricted cash and cash equivalents is less than $30 million at the end of a fiscal quarter. For further information
regarding the derivative financial instruments, see note 11 to our audited consolidated financial statements for the year ended December 31, 2010 elsewhere in this prospectus.

Foreign Currency Gain or Loss. Foreign currency translation gains or losses on transactions by us or our
subsidiaries in a currency other than our or our subsidiaries functional currency are included in our statements of operations as a component of other income (expense). A substantial portion of this net foreign currency gain or loss relates to
non-cash translation gain or loss related to the principal balance of intercompany borrowings at our Korean subsidiary that are denominated in U.S. dollars. This gain or loss results from fluctuations in the exchange rate between the Korean won
and U.S. dollar.

Income Taxes. We record our income taxes in each of the tax jurisdictions in
which we operate. This process involves using an asset and liability approach whereby deferred tax assets and liabilities are recorded for differences in the financial reporting bases and tax bases of our assets and liabilities. We exercise
significant management judgment in determining our provision for income taxes, deferred tax assets and liabilities. We periodically evaluate our deferred tax assets to ascertain whether it is more likely than not that the deferred tax assets will be
realized. Our income tax expense has been low in absolute dollars and as a percentage of net sales principally due to the availability of tax loss carry-forwards and we expect such rate to remain low for at least the next few years.

Our operations are subject to income and transaction taxes in Korea and in multiple foreign jurisdictions. Significant estimates and judgments are
required in determining our worldwide provision for income taxes. Some of these estimates are based on interpretations of existing tax laws or regulations. The ultimate amount of tax liability may be uncertain as a result.

Capital Expenditures. We invest in manufacturing equipment,
software design tools and other tangible and intangible assets for capacity expansion and technology improvement. Capacity expansions and technology improvements typically occur in anticipation of seasonal increases in demand. We typically pay for
capital expenditures in partial installments with portions due on order, delivery and final acceptance. Our capital expenditures include our payments for the purchase of property, plant and equipment as well as payments for the registration of
intellectual property rights.

Inventories. We monitor our inventory levels in light of product
development changes and market expectations. We may be required to take additional charges for quantities in excess of demand, cost in excess of market value and product age. Our analysis may take into consideration historical usage, expected
demand, anticipated sales price, new product development schedules, the effect new products might have on the sales of existing products, product age, customer design activity, customer concentration and other factors. These forecasts require us to
estimate our ability to predict demand for current and future products and compare those estimates with our current inventory levels and inventory purchase commitments. Our forecasts for our inventory may differ from actual inventory use.

Principles of Consolidation. Our consolidated financial statements include the accounts of our
company and our wholly-owned subsidiaries. All intercompany transactions and balances are eliminated in consolidation.

Segments. We operate in three segments: Display Solutions, Power Solutions and Semiconductor Manufacturing
Services. Our Power Solutions segment began to generate net sales in the second quarter of 2008. Net sales and gross profit for the All other category primarily relate to certain business activities that do not constitute operating or reportable
segments.

Net sales were $770.4 million for the year ended December 31, 2010, a $210.3 million,
or 37.6 %, increase compared to $560.1 million for the combined twelve-month period ended December 31, 2009, or $111.1 million for the two-month period ended December 31, 2009 and $449.0 million for the ten-month period ended
October 25, 2009. This increase was primarily due to increases in our product sales volume driven by overall business recovery in the market, an improved product mix and a $16.5 million favorable impact resulting from the appreciation of the
Korean won against the U.S. dollar, which were partially offset by a decrease in average selling prices.

Display
Solutions. Net sales from our Display Solutions segment were $305.9 million for the year ended December 31, 2010, a $22.9 million, or 8.1%, increase compared to $282.9 million for the combined
twelve-month period ended December 31, 2009, or $51.0 million for the two-month period ended December 31, 2009 and $231.9 million for the ten-month period ended October 25, 2009. The increase was primarily due to a 26.6% increase in sales
volume. Sales volume increased as the consumer electronics industry began to recover from the economic slowdown and demand and shipments for certain consumer electronics products such as digital televisions, PCs and smart phones increased. This
increase was partially offset by a 15.1% decrease in average selling prices, which was primarily from consumer price declines for LCD televisions, PC monitors and mobile devices.

Power Solutions. Net sales from our Power Solutions segment were $57.3 million for the year ended
December 31, 2010, a $44.9 million, or 362.9%, increase compared to $12.4 million for the combined twelve-month period ended December 31, 2009, or $4.7 million for the two-month period ended December 31, 2009 and $7.6 million for
the ten-month period ended October 25, 2009. The increase was primarily due to a 173.5% increase in sales volume and a 69.2% increase in average selling prices driven by an improved product mix and higher demand for MOSFET products from
existing and new customers as we grew this business.

Semiconductor Manufacturing Services. Net
sales from our Semiconductor Manufacturing Services segment were $405.2 million for the year ended December 31, 2010, a $143.8 million, or 55.0%, increase compared to $261.4 million for the combined twelve-month period ended
December 31, 2009, or $54.8 million for the two-month period ended December 31, 2009 and $206.7 million for the ten-month period ended October 25, 2009. This increase was primarily due to a 52.1% increase in sales volume and 2.0%
increase in average selling prices of eight-inch equivalent wafers driven by a strong market demand upside due to the recovery from the economic slowdown and an improved product mix of advanced process geometry.

All Other. Net sales from All other were $2.1 million for the year ended December 31, 2010, a
$1.3 million, or 38.5%, decrease compared to $3.3 million for the combined twelve-month period ended December 31, 2009, or $0.5 million for the two-month period ended December 31, 2009 and $2.8 million for the ten-month period ended
October 25, 2009. This decrease resulted from lower rental income due to the relocation of one lessee of our building.

The following table sets forth our net sales by geographic region and the percentage of total net sales represented by each geographic region for
the year ended December 31, 2010, the two-month period ended December 31, 2009 and the ten-month period ended October 25, 2009: